Energy, Work and Power

Kinetic energy is energy that is ​ ​ ​ (a)  

• stored

• destroyed

• created

• moving

Tags

NGSS.HS-PS3-2

A 20 kg object is sitting on top of a table that is 1.3 m high. What type of energy does it have?

• kinetic

• potential

• chemical

• electrical

Tags

NGSS.MS-PS3-2

The diagram shows a ball swinging at the end of a string. At which point(s) would the ball have the greatest potential energy (PE)?

• A and D

• B and C

• B

• C

Tags

NGSS.HS-PS3-2

Which of the following have kinetic energy:

A - cookie,

B - Truck racing down the street,

C - Person on an afternoon run,

D - Rubber band stretched but not released.

• B and C

• A and D

• A and B

• C and D

Tags

NGSS.HS-PS3-2

When calculating potential energy, the mass should be in which units?

• grams

• kilograms

• milligrams

• pounds

Tags

NGSS.HS-PS3-1

The diagram shows a ball swinging at the end of a string. At which point(s) would the ball have the greatest kinetic energy (KE)?

• A and D

• B and C

• B

• C

Tags

NGSS.HS-PS3-2

The diagram shows a ball swinging at the end of a string. At which point(s) would KE and PE be basically equal?

• A and D

• B and C

• B

• C

Tags

NGSS.HS-PS3-2

A 20 kg object is sitting on top of a table that is 1 m high. How much energy does it have? (PE = m g h where g = 10 m/s^2)

• 200 J

• 200 N

• 200 watts

• 200 kg

Tags

NGSS.HS-PS3-1

A car accelertes from 0 to 10 m/s and gains 50,000 J of kinetic energy. How much work was done to the car?

• 50,000 Watts

• 5,000 watts

• 500,000 watts

• 50,000 J

Tags

NGSS.HS-PS3-1

• True

• False