PS Unit 3 Review

Energy is measured in:

• newtons.

• joules.

• kg/m²

• kg•m/s²

An extended spring stores:

• radiant energy.

• potential energy.

• kinetic energy.

• chemical energy.

Tags

NGSS.MS-PS3-2

Energy can be thought of as stored ____.

• Force

• Mass

• Weight

• Work

A 1,500-kg car accelerates along a flat track to a speed of 20 m/s. How much does its gravitational potential energy increase over the length of the track?

• 0 joules

• 75 joules

• 30,000 joules

• 300,000 joules

Tags

NGSS.MS-PS3-2

A 0.6-kilogram basketball balances on the rim of a basketball hoop that is 3 meters high. What is the basketball’s potential energy?

• 1.8 J

• 5 J

• 9 J

• 18 J

Tags

NGSS.MS-PS3-2

Kevin jumps straight up in the air to a height of 1 meter. At the top of his jump, he has potential energy of 1,000 joules. If Kevin’s potential energy at the highest point of the jump is 1,000 joules, what is his speed when he leaves the ground?

• 1 m/s

• 4.4 m/s

• 19.6 m/s

• 440 m/s

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

NGSS.MS-PS3-1

A bowler lifts her bowling ball a distance of 0.5 meters using 35 joules of energy. What is the mass of her bowling ball?

• 3 kg

• 7 kg

• 17.5 kg

• 35 kg

Tags

NGSS.MS-PS3-4

What is the most work that can be done with 100 joules of energy?

• 10 J

• 100 J

• 1,000 J

• 10,000 J

Tags

NGSS.HS-PS3-3

Calculate the work needed to push a block with 4 newtons of force a distance of 10 meters.

• 0.4 joules

• 2.5 joules

• 4 joules

• 40 joules

Jake, who weighs 680 newtons, climbs a 6 meter ladder in 8 seconds. What was Jake’s power?

• 510 watts

• 680 watts

• 5440 watts

• 32640 watts

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5