WorksheetsPhysics-9 Work and power-Preview
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
When a force moves an object, work is done.
a)
True
b)
False
2.
Which is doing work?
a)
pushing a wall
b)
holding a box
c)
picking up a pencil
d)
sitting in a chair
3.
What does work transfer?
a)
force
b)
power
c)
energy
d)
gravity
4.
You push against the back of your friends car that is stuck. You push and be become very tired, but the car does not move. Did you do work?
a)
Yes, work was done
b)
No, work wasn't done
5.
The amount of work done in a certain amount of time is known as
a)
work
b)
effort force
c)
resistance force
d)
power
6.
If you have the same work as someone, but in less time
a)
You are more powerful
b)
You are less powerful
c)
You have the same power
7.
The more POWER you use to move an object, the more work you do.
a)
True
b)
False
8.
The unit used to measure power is the
a)
Watt
b)
Newton
c)
Joule
d)
Newton*meter
9.
units for work are
a)
netwons
b)
joules
c)
meters
d)
seconds
10.
What is the equation for work?
a)
W = mass * acceleration
b)
W = force * distance
c)
W = force/distance
d)
W = speed/time
100 %
