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U6 Quiz 1 22-23

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Last updated about 3 years ago
14 questions
Note from the author:
Open note, not open neighbor or google. Put phones away as usual.

Equations:
W=Fd
P=W/t or P=Fd/ t
KE= 1/2 mv^2
Open note, not open neighbor or google. Put phones away as usual.

Equations:
W=Fd
P=W/t or P=Fd/ t
KE= 1/2 mv^2
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Question 1
1.

What are the units of energy?

Question 2
2.

What are the units of Work?

Question 3
3.

What are the units of Power?

Question 4
4.

A horizontal force of 300 N is applied to move a 30kg giant teddy bear 10m across a level floor in a store to prepare for crazy holiday shoppers. What net work is done on the teddy bear?

Question 5
5.

Work is done when

Question 6
6.

A motor is more powerful if

Question 7
7.

What is the work done by a 0.4N cricket on a 21,000N car as the cricket sits on the car while the car backs up on a 11m driveway at 3.0 m/s.

Question 8
8.

In the Amazing Race, Team Llama took 2 minutes to take a 15 m path down a hill. Mickey and Minnie took 1 minute to take a 25 m path down a mountain. Jack and Jill took a path of 30 m after reaching the bottom in 25 seconds. Which team was the most powerful?

Question 9
9.

What is the power output by the child as she pulls a 250N toy up 1.2m onto her bunk bed in 0.3s?

Question 10
10.

A student walks to school at a constant velocity carrying a 3N backpack 30m across level ground. What is the net work done on the backpack?

Question 11
11.
If you triple the velocity of an object, the Kinetic Energy will be __________ the amount
Question 12
12.

What is the work done on a 2 kg ball that is now rolling at 10 m/s after being kicked?

Question 13
13.

How fast is rubber band released if it is 0.1 kg and had 200 J of energy as it was stretched?

Question 14
14.

Weekly Wrap Up: How did you feel about this week? What is something you struggled with this week? Any celebrations? Favorite song of the week?