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WorksheetsInclined Planes, Pulleys and Speed
Total questions: 16
Worksheet time: 8mins
Name
Class
Date
1.
In which situation will the pulley reduce the force needed to lift the load?
a)
A
b)
B
c)
C
d)
D
2.
Students pulled the same mass up an inclined plane that was 20 cm, 30 cm, and 40 cm long. Each time, they used a spring scale to measure the force needed to pull the mass up the inclined plane. What did they conclude?
a)
Less force was needed on the 20 cm plane
b)
More force was needed on the 40 cm inclined plane.
c)
The least amount of force was needed on the 40 cm inclined plane.
d)
The least amount of force was needed on the 30 cm inclined plane.
3.
An inclined plane reduces the amount of force needed to move an object by -
a)
increasing the distance the object moves.
b)
transferring more of the force to the object
c)
reversing the direction the object is moved.
4.
Which of the following decreases when an object is moved using an inclined plane?
a)
The distance the object moves.
b)
The pull of gravity on the object.
c)
The force needed to move the object.
d)
The amount of space the object occupies.
5.
What is a disadvantage of using an inclined plane to lift a heavy object?
a)
The object must be moved a greater distance.
b)
It takes less effort to move the object.
c)
Many objects are difficult to lift straight up.
d)
Heavy object usually take up more space.
6.
The picture shows a 150 N load being lifted using a fixed pulley. Which force could lift the load?
a)
50 N
b)
75 N
c)
175 N
7.
How much force would be needed to lift the 150 N weight? Remember, you need to divide the original force by the number of pulleys.
a)
300 N
b)
150 N
c)
75 N
d)
25 N
8.
The table shows the force needed to lift an object with different numbers of pulleys. How much force would you need when you use 4 pulleys?
a)
100 N
b)
75 N
c)
50 N
d)
25 N
9.
A fixed pulley does not reduce the force needed to lift an object. What, then, is the advantage of using a fixed pulley?
a)
A fixed pulley reduces the force.
b)
A fixed pulley changes the direction of the force.
c)
A fixed pulley does not have any advantages.
10.
A box rests motionless on the ground. One student is pushing the box to the right with a force of 2 Newtons. The other student is pushing to the left with a force of 5 Newtons. In which direction will the box move?
a)
Right
b)
Left
c)
No movement
11.
An image of a toy rocket and forces are shown below. Assuming the only two forces on the toy rocket are lift and gravity, which of the following combinations would result in the rocket moving upward?
a)
Lift = 5 Newtons and Gravity = 5 Newtons
b)
Lift = 3 Newtons and Gravity - 4 Newtons
c)
Lift = 5 Newtons and Gravity = 3 Newtons
d)
Lift = 4 Newtons and Gravity = 4 Newtons
12.
Which graph shows the fastest speed?
a)
A
b)
B
c)
C
d)
D
13.
Which of the following best describes the forces being applied in this situation?
a)
The forces are balanced, and the net force is zero.
b)
The forces are unbalanced, and the force of Horse 1 is greater.
c)
The forces are unbalanced, and the force of Horse 2 is greater.
d)
The forces are balanced, and the force of Horse 1 is greater.
14.
What motion will result from two forces acting on an object: one force of 50 Newtons to the east, the other a force of 30 newtons to the west? The object will -
a)
move east.
b)
move west.
c)
move north.
d)
move south
15.
A motorcycle traveled 250 km in five hours. What was its average speed?
a)
25 km/hr
b)
250 km/hr
c)
5 km/hr
d)
50 km/hr
16.
If an object travels 42 meters in 6 seconds, what is its average speed?
a)
6 m/s
b)
7 m/s
c)
48 m/s
d)
252 m/s
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