Force, Work & Energy Worksheet-7
True or False
We cannot move objects even if we apply force.
In our daily life, we lift many things.
We can move objects by applying force.
We can change the shape of the objects by applying force.
A pull or a push acting on an object is called friction.
Force does not causes cause an to increase or decrease its speed.
Force may cause an object to change its position or direction.
The force that pulls objects downwards towards the centre of the Earth is called force.
Force, Work & Energy Worksheet-8
True or False
There are two types of forces in nature that are acting all the time.
Gravity is a type of force.
Friction is a type of force.
The force that pulls objects downwards towards the centre of the Earth is called gravity.
When we throw the ball up, we throw it with a lot of force which is more than the force of gravity.
If we throw the ball up, it comes down due to the force of gravity.
Falling of leaves towards the ground is due to the force of gravity.
Force, Work & Energy Worksheet-9
True or False
Any object that slides stops after moving a certain distance because of gravity.
A force of friction acts when an object stops.
Any object that slides stops after moving a certain distance because of friction.
A force of friction acts when an object starts moving.
Anything that started moving would never stop, if there was no friction.
Nothing would move, if there was too much friction.
Smoother materials cause less friction.
Rougher materials produce more friction.
