4th Grade > Science
FORCE WORK AND ENERGY MCQs
Total Questions : 40
| Page 4 of 4 pages
Answer: Option A. ->
Force of gravity
:
A
:
A
Due to the gravitational force of Earth, every object is attracted towards the earth. Therefore the ball will be attracted towards the centre of the earth, so it will come back. If there was no gravity on Earth then the ball if thrown up, will never come back.
Answer: Option D. ->
Contact, Non-Contact
:
D
:
D
The two main types of forces are contact and non-contact forces.
Answer: Option B. ->
An object would never return if thrown up.
:
B
The gravitational force of Earth keeps everything binded on the surface. If we throw any object in the absence of gravity, it would fly-off forever.
:
B
The gravitational force of Earth keeps everything binded on the surface. If we throw any object in the absence of gravity, it would fly-off forever.
Answer: Option B. ->
magnetic force
:
B
:
B
A magnet attracting iron pins is an example of magnetic force.
Answer: Option B. ->
False
:
B
:
B
The force of gravity pulls objects towards the centre of the Earth.
Answer: Option D. ->
work
:
D
:
D
Work is said to be done when a force applied on an object moves that object. Work is calculated by multiplying the force applied on the object to the movement or displacement of the object.
Answer: Option B. ->
friction
:
B
:
B
Friction always acts opposite to the motion. Hence, a moving ball on the ground comes to a stop after some time because of friction.
Answer: Option D. ->
friction
:
D
:
D
The ball is not moving and remains motionless due to the force of friction as friction opposes the motion.
Answer: Option B. ->
energy
:
B
:
B
Energy is the capacity to work.
Answer: Option B. ->
push, pull
:
B
:
B
A force is defined as a push or pull that can cause an object to move, remain in place or change its shape.
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