Force and Motion

A force is ....

• A push or pull on an object

• The color of an object

• The size of an object

• The weight of an object

Which of the following is an example of force?

• Sitting on a chair

• Pushing a door open

• Sleeping

• Standing still

Walking, lifting, getting up from the chair and crossing leg are all action called ….

• Magnetic force

• Gravitational force

• Muscular force

• Frictional force

Gravity is a force that ....

• Pulls objects up

• Pulls objects to the center of the Earth

• Pushes objects away from Earth

• Makes objects float

Which of the following is an advantage of friction?

• Noise in machine

• Damage machine part

• Light a matchstick

• Wear out soles of shoes

An object moving along a curved path is said ….

• Linear motion

• Periodic motion

• Curvilinear motion

• Rotational motion

A force can make a stationary object to ….

• Resist

• Stay on the place

• Stagnant

• Move

What is inertia?

• The force of gravity on an object

• The tendency of an object to resist a change in motion

• The speed of an object

• The amount of force on an object

Which of the following requires more force?

• Pushing a heavy box

• Pushing a feather

• Pushing an empty box

• Pushing a balloon

Which of these is the stationary object?

• A bird flying

• Hands of a working clock

• A switched off fan

• A cat is running to the yard