Force, work and energy

Force, work and energy

Multiple Choice

Forces change the speed, direction or shape by ____________________-

• pushing or pulling

• shoving

• rolling

• jumping

Multiple Choice

What is a force?

• a push or a pull

• a force that slows or stops an object in motion

Multiple Choice

Which of the following activities would need energy the most?

• Riding a bicycle up a hill

• Walking

• Riding a bicycle on a level ground

• Doing homework

Multiple Choice

An electric heater converts

• heat energy to electrical energy.

• electrical energy to heat energy.

• light energy to electrical energy.

• electrical energy to muscular energy.

Multiple Choice

A football kicked by a boy rolls on the ground to some distance and stops. The force which stops the ball is

• muscular force

• gravitational force.

• mechanical force.

• frictional force.

Multiple Choice

To do work, we need

• force

• energy

• hands

• muscles

Multiple Choice

If Ravi is able to move the table through a distance, then ____ is said to be done.

• work

• force

• energy

• muscles

Multiple Choice

The capacity to do work is called ?

• force

• energy

• machine

• movement.

Multiple Choice

A ramp is also known as an inclined plane.

• True

• False

Multiple Choice

Identify the simple machine

• Wheel and axle

• Lever

• Pulley

• Wedge

Multiple Select

Force can move a stationary object or stop a moving object.

• True

• False

Multiple Choice

Identify whether work is done or not in the picture

• Yes

• No

Multiple Choice

The energy obtained from the Sun is known as?

• water energy

• wind energy

• electrical energy

• solar energy

Multiple Choice

The energy used to turn the blades of a windmill is called_____________

• solar energy

• water energy

• wind energy

• muscular energy

Multiple Choice

A force that tries to stop a moving object is known as?

• Gravitational force

• Force of friction

• Mechanical force

• Electrical force

Multiple Choice

Door knobs and screwdrivers are examples of which kind of simple machine?

• Pulley

• Lever

• Wheel and axle

Multiple Choice

What is the main source of our energy?

• Planets

• Comets

• Moon

• Sun

Multiple Select

Energy is the ability to do work.

• True

• False

Multiple Select

When we use force to move things, we do?

• Work

• Energy

Fill in the Blank

Friction occurs when the object rubs against a

Multiple Select

When we throw a ball up, it falls down to the ground because of force of

• Gravity

• Friction

• Magnetic

• Electric

Multiple Choice

A push or pull that acts on an object is called

• Work

• Force

• Energy

• Momentum