2020 Unit 4 & 5: Work, Power, Energy

Energy of a rock perched on a cliff is an example of...

• gravitational
• elastic
• chemical
• kinetic

Tags

NGSS.MS-PS3-2

How do you calculate power?

• P = W/t
• P = E/t
• P = w * t
• P = bbq/chicken

How do we calculate work?

• W = F * d
• w = f * D
• W = F * D
• w = f * d

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

The SI unit for power is...?

• Watts
• Joules
• Newtons
• Meters

A force exerted over a distance to move an object is ______________________.

• power
• work
• momentum
• Watt

If 150 Joules of work is needed to move a box 10 meters, what force was used? 

• 1500 N
• 15 N
• 1.5 N
• 150 N

Tags

NGSS.MS-PS2-2

If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?

• 272 m
• 17 m
• 4.05 m
• 272 cm 

Tags

NGSS.MS-PS3-4

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

NGSS.MS-PS3-5