P6 Energy & Forces Revision

The amount of kinetic energy that an object possesses can be affected by __________ and ___________.

• height

• mass

• weight

• speed

Chemical potential energy can be found in

• batteries

• food

• springs

• fuel

The amount of gravitational potential energy that an object possesses can be affected by its __________ and its ___________.

• height from the ground

• speed of fall

• volume

• mass

___________ energy can be found in compressed springs.

• Chemical potential

• Force of pushing

• Elastic potential

• Kinetic

What are the three kinds of potential energy?

• Gravitational

• Kinetic

• Chemical

• Elastic

• Electrical

Frictional force always acts in the ___________ direction of a moving substance.

The gravitational force acting on an object is affected by the height of the object above the ground.

• True

• False

The heavier an object is, the more gravitational force acting on it.

• True

• False

Frictional force can exist as __________ or ___________ resistance.

• heat

• rough

• water

• air

Friction may be reduced by adding ____________________.

• lubricants

• wheels

• ball bearings

• weights