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question_answer1)
Which two simple machines does this device use to make work easier?
A)
An inclined plane and a pulley done
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B)
A wheel and axle and a wedge done
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C)
Gears and a lever done
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D)
A wheel and axle and a lever done
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question_answer2)
Each of these simple machines contains a ______
A)
Wheel and axle done
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B)
lever done
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C)
Pulley done
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D)
wedge done
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question_answer3)
A car jack is a screw. A sea-saw is a:
A)
Screw done
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B)
First class lever done
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C)
Second class lever done
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D)
Third class lever done
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question_answer4)
The box in the given figure would be easier to move if the surface of the ramp was smoother because there would be less -
A)
Mass in the box. done
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B)
Friction opposing the box. done
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C)
Gravity pulling on the box. done
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D)
Distance to push the box. done
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question_answer5)
The figure shows a pair of scissors.
Which points marked K. L and M represent the fulcrum, effort and load?
A)
B)
C)
D)
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question_answer6)
How are the following similar?
The lever, inclined plane, pulley, screw, wheel and axle |
A)
They are simple machines. done
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B)
They are complex machines. done
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C)
They are forces. done
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D)
They are energy done
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question_answer7)
How many types of levers are there?
A)
4 done
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B)
2 done
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C)
3 done
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D)
1 done
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question_answer8)
What is a lever?
A)
A bar which can turn about a fixed point done
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B)
An inclined plane done
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C)
A wheel with grooves done
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D)
An axle and wheel done
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question_answer9)
What is a fulcrum?
A)
A Pushing force done
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B)
The fixed point of a lever done
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C)
An object done
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D)
All of these done
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question_answer10)
What is an effort?
A)
The object that is moved done
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B)
The point of the bar done
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C)
The force applied to move the load done
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D)
All of these done
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question_answer11)
A lever which has a fulcrum in the middle is
A)
a first class lever. done
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B)
a second class lever. done
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C)
a third class lever. done
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D)
All of these done
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question_answer12)
In second class lever
A)
Fulcrum is in the middle. done
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B)
Load is in the middle. done
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C)
Effort is in the middle. done
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D)
Load is sideways. done
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question_answer13)
In the third class of lever,
A)
The effort is applied between the fulcrum and the load. done
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B)
The effort is on the sides. done
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C)
The load is in the center. done
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D)
The fulcrum is in the middle. done
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question_answer14)
A simple machine used to move the object to a higher place is the
A)
Wedge. done
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B)
Wheel and axle. done
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C)
Inclined plane. done
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D)
Pulley. done
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question_answer15)
A small wheel with a grove around its rim is the
A)
pulley. done
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B)
Wedge done
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C)
Wheel and axle. done
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D)
Inclined plane done
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question_answer16)
A screw is a/an
A)
inclined plane. done
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B)
Lever. done
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C)
Wedge. done
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D)
Pulley. done
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question_answer17)
Two inclined planes together form a
A)
pulley. done
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B)
Gear. done
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C)
Wedge. done
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D)
Screw. done
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question_answer18)
Which of these is used to draw water from the well?
A)
Lever done
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B)
Inclined plane done
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C)
Pulley done
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D)
Screw done
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question_answer19)
When a stone is thrown upwards into the air, it comes down after some time because of
A)
Electrical force. done
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B)
Frictional force. done
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C)
Magnetic force. done
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D)
Gravitational force. done
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question_answer20)
An inclined plane is an example of
A)
A complex machine. done
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B)
A compound machine. done
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C)
An easy machine. done
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D)
A simple machine. done
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question_answer21)
Match the following simple machines in column-I with their respective uses given in column-II.
| Column - I | | Column - II |
p. | Pulley | i. | To fix two |
q. | Wedge | ii. | To lift heavy objects |
r. | Screw | iii. | To cut objects |
A)
p-ii, q-i, r-iii done
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B)
p-ii, q-iii, r-i done
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C)
p-i, q-iii, r-ii done
clear
D)
p-iii, q-i, r-ii done
clear
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question_answer22)
In the given figure, what is 'X'?
A)
Fulcrum done
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B)
Load done
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C)
Effort done
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D)
Force done
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question_answer23)
Observe the figure given below and identify the type of lever.
A)
(i) class lever done
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B)
(ii) class lever done
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C)
(iii) class lever done
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D)
All of the above done
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question_answer24)
To which class of lever is the figure given below belong to
A)
Class (i) lever done
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B)
Class (ii) lever done
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C)
Class (iii) lever done
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D)
Inclined plane done
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question_answer25)
Which of the following activities involves the use of levers?
(i) Using your arm to lift a handbag. |
(ii) Using scissors to cut cloth. |
(iii) Using a wheel barrow to transfer tools. |
A)
Only (i) and (ii) done
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B)
Only (i) and (iii) done
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C)
Only (ii) and (iii) done
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D)
(i), (ii) and (iii) done
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question_answer26)
Which of the following simple machines belong to the same order of lever as that of the given tool?
A)
Pliers done
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B)
The fire tongs done
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C)
A hand pump done
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D)
A wheel barrow done
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question_answer27)
A ramp is
A)
A lever. done
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B)
A wedge. done
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C)
An inclined plane. done
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D)
A screw. done
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question_answer28)
In the figure given below what do the symbols of the square, triangle and arrow represent?
A)
B)
C)
D)
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question_answer29)
The figure given below is an example of
A)
The first order lever. done
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B)
The second order lever. done
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C)
The third order lever. done
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D)
An inclined plane. done
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question_answer30)
Which person is using a wedge?
A)
B)
C)
D)
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question_answer31)
The picture shows a simple machine used at home and at school. Which type of simple machine is shown in the picture?
A)
Pulley done
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B)
A screw done
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C)
A lever done
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D)
A wedge done
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question_answer32)
Which of these shows an inclined plane?
A)
B)
C)
D)
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question_answer33)
The head of an axe is wide at one end and pointed at the other to help cut or trim trees. The axe head is an example of
A)
a pulley. done
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B)
a wheel and an axle. done
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C)
a wedge. done
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D)
an inclined plane. done
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question_answer34)
Which of the following pictures shows how a wedge works?
A)
B)
C)
D)
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question_answer35)
Which of these shows a pulley?
A)
B)
C)
D)
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question_answer36)
The picture shows ajar with its lid. What kind of a simple machine is ajar lid?
A)
Ramp done
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B)
Pulley done
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C)
Screw done
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D)
Wedge done
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question_answer37)
Which one of these would you use to remove the box from the truck?
A)
A lever done
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B)
An inclined plane done
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C)
A wheel and axle done
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D)
A pulley done
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question_answer38)
Why is it easier to draw water from a well using a pulley instead of simply pulling a bucket up with a rope?
A)
The pulley helps us change the direction of the force. done
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B)
The pulley gives us the energy to pull the water up. done
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C)
The water weighs much more when a pulley is used. done
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D)
The water is pulled through a shorter distance with a pulley. done
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question_answer39)
Kavita uses a downward pulling force on the rope to make the blind go up. Which simple machine is being used?
A)
Pulley done
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B)
Lever done
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C)
Wheel done
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D)
Inclined plane done
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question_answer40)
Though a ship is heavier than an iron ball, it floats on water while the iron ball sinks. Why does this happen?
A)
An iron ball is round and ship is flat. done
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B)
An iron ball is small and a ship is large. done
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C)
The weight of a ship is the same as that of the water it displaces. done
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D)
A ship has to save the life of many people. done
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