Force and Energy Review!

Energy exists in two states. They are __________.

• friction and reflection

• potential and kinetic

• solar and nuclear

Tags

NGSS.MS-PS3-2

What is potential energy

• the energy of motion

• stored energy

• atomic energy

Tags

NGSS.MS-PS3-2

What is kinetic energy?

• The energy of motion

• Stored energy

• Heat energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which has more potential energy - a skier on the top of a slope, or the skier half way down the slope?

• the skier on top

• the skier half way down

• neither - they both have the same

Tags

NGSS.MS-PS3-2

Falling from a tree, an apple ___________.

• loses both potential and kinetic energy as it falls

• gains both potential and kinetic energy as it falls

• loses potential energy, but gains kinetic energy as it falls

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Due to the force of gravity, any object raised or held in a position above the ground has ___________.

• kinetic energy

• potential energy

Tags

NGSS.MS-PS3-2

A moving object always has kinetic energy. True or false?

• True

• False

Tags

NGSS.MS-PS3-1

Why does an apple hanging from a branch have potential energy?

• Because it is not in motion.

• Because it is ripe.

• Because of its position off the ground and the force of gravity.

Tags

NGSS.MS-PS3-2

What kind of force might cause a kicked ball to eventually roll to a stop?

• A push or pull

• Friction (rubbing against the air and ground)

Tags

NGSS.MS-PS3-5

Friction creates heat.

• True

• False

Tags

NGSS.MS-PS3-3