Energy, Work, and Power

Potential energy depends on the ________ and ________ of the object.

• Height (position)

• Mass

• Speed

• Friction

Tags

NGSS.MS-PS3-2

Which point has the most potential energy?

• G

• F

• B

• A

Tags

NGSS.MS-PS3-2

What is energy?

• rate of work
• Motion of an object
• ability to do work
• force over time

Tags

NGSS.MS-PS3-5

Kinetic energy depends on the ________ and ________ of the object.

• Height (position)

• Mass

• Speed

• Friction

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

A cheetah can run briefly with a speed of 31 m/s. Suppose a cheetah with a mass of 47 kg runs at this speed. What is the cheetah’s kinetic energy?

• 1457 J

• 728.5 J

• 45,167 J

• 22,583.5 J

Tags

NGSS.MS-PS3-1

Where does the pendulum have the greatest kinetic energy?

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS3-4

Which of the following objects has the most kinetic energy?

• A 20 kg toddler running at 5 m/s
• A 50 kg toddler running at  30 m/s
• A 90 kg toddler running at 30 m/s
• A 100 kg  toddler running at 2 m/s

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

Which of the is the equation for calculating work?

• W = Fd

• W = ma

• W = mv

• W = mc²

Tags

NGSS.MS-PS3-5

The sum of the kinetic and potential energy in a system is known as the system's _____________________ energy.

• mechanical

• chemical

• thermal

• combined

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

At which point in the picture must the cart have the most MECHANICAL energy?

• Point 1

• Point 2

• Point 3

• They would all be the same

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-4