Power Energy

Is the amount of energy being transferred over a period of time.

• Power

• Energy

• Seconds

• Joules

Where does the pendulum have the greatest kinetic energy?

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Where does the pendulum have the least amount of potential energy?

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS3-2

The ability or capacity to do work is called _____.

• energy

• force

• work

A girl weighs 400 N. She runs up a flight of stairs of height 5 m in 4 seconds. Her power is:

• 320 W

• 400 W

• 500 W

• 2 000 W

What is the unit of measurement for power?

• Joules

• Watts

• Voltage

• Calories

Which type of appliances transfer the most energy per second?

• Those that transfer energy into heat.

• Those that transfer energy into light.

• Those that transfer energy into sound.

• Those that transfer energy into movement.

Tags

NGSS.MS-PS3-3

A kettle transfers 1000J of energy every 2 seconds. Calculate its power.

• 2000 Watts

• 1000 Watts

• 500 Watts

• cannot be determined

Where does the pendulum have the greatest potential energy? (pick 2)

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS3-2

What is the mechanical energy of the system? (ignore friction)

• 0J

• 10,000J

• 20,000J

• can not be determined

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5