WorksheetsHeat, Work, and Simple Machines
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
We see evidence of energy when we see _____________ being done.
a)
force
b)
motion
c)
work
2.
Each of the men in the illustration is pushing on the box. They each push for 30 seconds but do NOT move the box. The men applied ______ but no ______ was done.
a)
force, work
b)
work, force
c)
motion, force
3.
In the diagram, which type of simple machine is being used to lift the load?
a)
wheel and axle
b)
inclined plane
c)
lever
d)
screw
4.
In the diagram, which arrangement would require the MOST effort force to lift the load?
a)
Arrangement #1
b)
Arrangement #2
c)
Arrangement #3
5.
In the diagram, which pulley system would require the LEAST amount of effort to lift the weight?
a)
A
b)
B
c)
C
d)
D
6.
Refer to the diagram. How does using pulley A make work easier?
a)
It changes the force.
b)
It changes the distance.
c)
It changes the direction.
7.
In the diagram, which statement is correct concerning the amount of force that is required to lift the box?
a)
Figure 1a requires the least force.
b)
Figure 1b requires the least force.
c)
Figure 1c requires the least force.
8.
The axe shown is a compound machine. Which two simple machines make up an axe?
a)
Screw and inclined plane
b)
Pulley and lever
c)
Wedge and lever
d)
Wedge and inclined plane
9.
Which 2 simple machines are being used in the diagram?
a)
inclined plane & wheel and axle
b)
lever & wheel and axle
c)
inclined plane & lever
d)
wedge & screw
10.
Which of these activities would require the LEAST effort force?
a)
walking up a short ramp with a steep incline
b)
walking up a long ramp with a steep incline
c)
walking up a long ramp with a slight incline
d)
bypassing the ramp and jumping directly onto a platform
11.
When you carry a box up a ramp, instead of lifting it directly onto a platform:
a)
the amount of work you have to do
decreases slightly
b)
the amount of work you have to do
decreases significantly
c)
the amount of work you have to do stays
the same
12.
In a science class experiment, a piece of metal that has been sitting at room temperature for several hours is placed in a beaker that contains boiling water. Which is the best description about what will happen?
a)
Coldness will be transferred from the
cool metal to the hot water.
b)
Heat energy will be transferred from the
cool metal to the hot water.
c)
Heat energy will be transferred from the
hot water to the cool metal.
d)
The metal will prevent water from losing
any of its heat energy.
13.
The sketch shows a car climbing a winding mountain road. What type of simple machine best describes the winding mountain road?
a)
inclined plane
b)
screw
c)
lever
d)
pulley
14.
A doorknob is an example of a wheel and axle. Why don’t you just remove the wheel (doorknob) and just use the axle?
a)
Turning the axle directly requires too
much effort force
b)
Without the wheel, the axle is useless
c)
The wheel balances out the weight of the
axle
d)
An axle cannot turn on its own.
15.
The diagram shows two different inclined planes that can be used to lift a heavy box onto a table. Which statement best describes the advantage of using the long board?
a)
By using the long board, you don’t have
to do as much work.
b)
By using the long board, you don’t have
to exert as much effort force.
c)
By using the long board, you don’t have
to push the box as far.
16.
Which illustration demonstrates how a box could be moved up a ramp with the least amount of effort force?
a)
A
b)
B
c)
C
d)
D
17.
The handle of the pot in the picture will get hot as a result of ___.
a)
conduction
b)
convection
c)
radiation
18.
One material you could use on the handle of the pot (in the picture) that would keep it from getting hot would be _______ .
a)
copper
b)
steel
c)
aluminum
d)
rubber
19.
In the pot on the stove (in the picture), the rolling motion of the boiling water is a good example of ___________.
a)
conduction
b)
convection
c)
radiation
20.
The Sun’s energy reaches earth by
a)
conduction
b)
convection
c)
radiation
100 %
