WorksheetsForces Unit Mastery
Total questions: 14
Worksheet time: 7mins
Name
Class
Date
1.
______________ is when an object bends or changes shape.
a)
Injury
b)
Deformation
c)
Collision
d)
Force
2.
All solid objects deform when pushed on in a collision and when other contact forces are applied to them.
a)
True
b)
False
3.
Force is measured in ____________
a)
Pounds (lb)
b)
Centimeters (cm)
c)
Grams (g)
d)
Newtons (N)
4.
Which variable has the greatest effect on an object’s kinetic energy? (Hint: What is Kinetic Energy?)
a)
The object’s shape
b)
The object’s speed
c)
The object’s mass
d)
The object's material
5.
What does friction do to moving objects?
a)
It causes the object to cool down
b)
It causes the object to speed up
c)
It causes the object to slow down
d)
It has no effect on the object
6.
What is true about the forces and the motion on the box below?
a)
The forces are balanced and the box will accelerate to the left
b)
The forces are unbalanced and the box will accelerate to the left
c)
The forces are unbalanced and the box will accelerate to the right
d)
The forces are unbalanced and the box will move at a constant speed to the right
7.
The amount force that a baseball bat exerts on a ball is 50 newtons. What is the amount the force that the ball exerts on the bat?
a)
5N
b)
10N
c)
25N
d)
50N
8.
If you apply the same force to a basketball and a bowling ball, why does the basketball accelerate more?
a)
The basketball has less mass than the bowling ball.
b)
The basketball has more gravity than the bowling ball.
c)
The basketball has more mass than the bowling ball.
d)
The force acts differently on each object because of their shape.
9.
A swimmer pushes backward against the water with their arms. What is the reaction force?
a)
The water pulls the swimmer down.
b)
The water pushes the swimmer forward.
c)
The swimmer moves backward.
d)
There is no reaction force.
10.
When 20,000 N of force is applied to this material, it’s deformation is approximately:
a)
0.00 cm
b)
0.05 cm
c)
0.08 cm
d)
0.10 cm
11.
All materials have an elastic limit. This is the largest amount the sample could be deformed and still return to its original shape after the force on it was removed. What is the elastic limit of the material displayed in the graph?
a)
27,000 N
b)
46,000 N
c)
54,000 N
d)
63,000 N
12.
What happens when 80,000N of force is applied to this material?
a)
The material deforms and returns to its original shape
b)
The material deforms and does not return to its original shape
c)
The material does not deform but does bend
d)
The material does not deform but does stay rigid
13.
Which factors affect how much an object deforms when force is applied to it?
a)
The type of material, the color, the shape, and the thickness of the object.
b)
The type of material, the color and the shape of the object.
c)
The type of material, the color, and the thickness of the object.
d)
The type of material and the thickness of the object.
14.
Based on the graph, what is the relationship between mass and kinetic energy?
a)
As kinetic energy increases, mass stays the same.
b)
As kinetic energy increases, mass decreases.
c)
As kinetic energy decreases, mass increases.
d)
As kinetic energy increases, mass increases.
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