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WorksheetsBattleship Break-In Work & Power
Total questions: 20
Worksheet time: 10mins
In order for work to be done ON an object what must happen?
A force must act on it
The object has to move
The object has to move in the direction of the force
Forces are measured i n
grams
newtons
joules
watts
Work is measured in
grams
newtons
joules
watts
One Newton is about the weight of 1 _. (legend has it (a) )
Power is measured in
grams
newtons
joules
watts
1 Joule is the amount of work neede to lift 1N of weight to a height of 1 _.
(a)
Is work being done ON a baseball while it is in your hand and you are throwing it?
Yes
No
Is work being done ON a baseball while it is flying through the air?
Yes
No
Is work being done ON snow when you are shoveling (using the shovel to push it across the sidewalk?)
Yes
No
Is work being done ON your dog as you carry it up the stairs
yes
no
Is work being done a can of soup as you carry it across the room?
yes
no
What takes more WORK cleaning your room in 5 minutes or cleaning your room in 60 m in?
5 min
60 min
Neither - it's the same amount of work
Power is about how _ work is done.
(a)
What takes more POWER, cleaning your room in 5 min or cleaning your room in 60 min?
5 min
60 min
Neither, they are the smae
One _ is the amount of power needed to lift 1N over a distance of 1 m in 1 sec.
gram
Newton
Joule
Watt
You're emptying the dishwasher and you pull out all of the bowls, stack them, and put them away at the same time. Which of theses is true
You did more work because the stack of bowls is heavier and you needed more force
You did less work because you only had to lift them to he cabinet once
You did the same amount of work because you lifted the bowls to the same height
How much work is used to lift a 50N box to a height of 2 m?
25 J
50 J
100 J
100 w
How much power is used to lift 100 N to a height of 1 m in 2 seconds?
200 J
200 w
50 w
If you do a job faster you:
Do more work
Use more power
Both work and power are the same
_ occurs when force is put on an object and causes it to move in the direction of the force (all lowercase letters in your answer)
(a)
