Energy Work and Power Quiz

A 30 kg object is on a shelf 10 m high. What is the objects potential energy?

• 300 J
• 2940 J
• 3000 J
• 294 J

Tags

NGSS.MS-PS3-2

A 6.7 kg cat is moving at 3 m/s. How much kinetic energy does it have?

• 60.3 J
• 30.15 J
• 70 J
• 40 J

Tags

NGSS.HS-PS3-1

Are energy and work connected?

• No they are independent of each other
• Yes Energy is stored work and work uses energy.

Tags

NGSS.HS-PS3-2

What is the unit for work?

• Watts
• Newtons
• Joules
• meters

A 100 watt bulb runs for 7.5 seconds. How much energy does it use?

• 13.3 J
• 15 J
• 750 J
• 700 J

Tags

NGSS.HS-PS3-1

If a weight lifter lifts 750 N of weight 2 meter in 2.3 seconds what is his power output?

• 326 watts
• 652 watts
• 163 watts
• 1500 watts

Tags

NGSS.HS-PS3-2

A 50 kg object is on a shelf 5 m high. What is the object's potential energy?

• 2450 J

• 500 J

• 250 J

• 3225 J

Tags

NGSS.HS-PS3-1

A 4 kg dog is moving at 2 m/s. How much kinetic energy does it have?

• 16 J

• 8 J

• 4 J

• 2 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

Calculate the work done by a 47 N force pushing a pencil 0.26 m.

• 0.47 J
• 12.22 J
• 0.26 J
• 47 J

Tags

NGSS.HS-PS3-1

If a person pushes down on 2m tall box with 30 N, how much work has been done?

• 60 J

• 15 J

• 0 J

• 120 J

Tags

NGSS.HS-PS3-2