unit 2 quiz 5

Gravity pulls objects downward?

• true

• false

…………………. Is the covered distance in a unit of time.

• Speed

• potential energy

• kinetic energy

pushing force of gravity makes a ball falls down after throwing it in air?

• true

• false

the kinetic energy increases by increasing the height of the moving object?

• true

• false

Energy can be changed from one form to another?

• true

• false

Human needs energy from……………

• food

• saliva

• battery

Hitting a tennis ball needs a pulling force?

• true

• false

Potential energy is the energy of a moving body?

• true

• false

in the electric fans electrical energy changes into kinetic energy?

• true

• false

When an object moves down a ramp its stored potential energy ...................................

• increases

• changes to a less active form of energy

• changes to a more active form of energy