Calculating Ke and Gpe

What is the kinetic energy of a soccer ball which has a mass of 0.8 kg and is kicked with a velocity of 10 m/s?

• 40 J

• 41 J

• 4 J

• 80 J

Tags

NGSS.MS-PS3-1

Calculate the kinetic energy of a running back that has a mass of 80 kg and is running as a velocity of 8 m/s.

• 320 J

• 2650 J

• 2560 J

• 5120 J

Tags

NGSS.MS-PS3-1

There is a clock at the top of a tower that is 45m high. The clock weighs 20 kg. Calculate its potential energy. Remember g or a=9.8 m/s

• 8100 J

• 9.8 m/s

• 900 J

• 8820 J

Tags

NGSS.MS-PS3-2

What is the GPE of a 0.3 kg apple on top of a 1 m tree?

• 0 J

• 2.94 J

• 0.3 J

• 2.96 J

What is the value for g (gravity)?

• 99.8 m/s

• 8.9 m/s

• 9.8 m/s

• 9 m/s

A 50 kg girl is on a diving board that is 3 m high. What is her kinetic energy at the top of the board?

• 0 J

• 1470 J

• 1740 J

• 150 J

What unit do we use to measure energy?

• kg

• m/s

• N

• J

Which of the following affects the gravitational potential energy of an object?

• The mass of the object
• The height of the object
• The velocity of the object
• Both the mass and height of the object

Tags

NGSS.MS-PS2-4

Energy due to motion is ____________ energy. 

• Potential 
• Energy
• Kinetic
• Friction

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

The faster an object moves, the ________ kinetic energy it has. 

• more
• less
• none of the above
• all of the above 

Tags

NGSS.MS-PS3-1