Energy and Work and Momentum

How much work is being done with 200 N of force over 426 meters?

• 85,200 J
• 45,620 J
• 90,480 J
• 62,329 J

The SI unit of work is?

• Joules
• Watts
• Newtons
• meters

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The SI unit for power is...?

• Watts
• Joules
• Newtons
• Meters

What is the formula for Gravitational Potential Energy?

• PE = m*g*h
• KE = 1/2m*v2
• W = F*d
• P = W/t

Tags

NGSS.MS-PS3-2

What is the formula for Kinetic Energy?

• PE = m*g*h
• KE = 1/2m*v2
• W = F*d
• P = W/t

Tags

NGSS.HS-PS2-1

A 24 Newton force was used to push a crate a distance of 4 meters. Calculate the work done on the crate.

• 6 Joules
• 28 Joules
• 96 Joules
• 60 Joules

During a pull-up, a 90kg man raises himself by 80cm. Calculate the work done in a single pull-up.

• 715.6 Joules

• 71,500 Joules

• 1,125 Joules

• 112,500 Joules

Bro A bench presses 145-lbs five times in 20 seconds.
Bro B bench presses 145-lbs five times in 10 seconds.

• Bro A did more work.
• Bro B did more work.
• Both Bros did the same amount of work.
• Bro

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A 70 kg runner has a velocity of 5 m/s. Her kinetic energy is

• 875 J
• 175 J
• 1750 J
• 350 J

Tags

NGSS.MS-PS3-1

How much work does gravity do on your 63 kg teacher when she trips and falls from a height of 1.5 m?

• 94.5 J

• 926.1 J

• 42 J

• 411.6 J

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5