Kinetic Potential Energy Calculations

Lilly's cat ran through your yard. The cat has a mass of 5 kg. He is running at a speed of 3 m/s. What is the kinetic energy of the cat as he runs? (KE = 1/2mv²)

• 8.5 J

• 45 J

• 7.5 J

• 22.5 J

Tags

NGSS.MS-PS3-1

Alice kicks a soccer ball with a mass of 2.1 kg. The ball leaves the ground moving 30 meters per second. What is the kinetic energy of the soccer ball? (KE = 1/2mv²)

• 567 J

• 900 J

• 945 J

• 30 J

Tags

NGSS.MS-PS3-1

At which point is potential energy greatest?

• W

• X

• Y

• Z

Tags

NGSS.MS-PS3-2

Calculate the potential energy of a car with a mass of 2,500 kg that is on a hill 100 meters above sea level.

Tags

NGSS.MS-PS3-2

The ball will have the greatest potential at ​ (a)  

The ball will have the greatest speed at ​ (b)  

• C

• A

• B

• D

Tags

NGSS.MS-PS3-2

The kinetic energy of the bicycle would be the greatest at the ​ (a)   ​

• bottom

• top

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Where did it have the highest potential and lowest kinetic?

a

b

1

2

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

​ (a)   is where KINETIC energy is the HIGHEST and POTENTIAL energy is the LOWEST.

​ (b)   is where KINETIC energy is the LOWEST and POTENTIAL energy is the HIGHEST.

• Point Y

• Point W

• Point X

• Point Z

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Label the ball's energy state:

d

c

b

a

Half and half

All KE

Mostly GPE but some KE

All GPE

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Select the point on the image where the ball will have the greatest kinetic energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5