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WorksheetsBalanced vs Unbalanced forces STAAR Review
Total questions: 44
Worksheet time: 1hrs 1mins
Name
Class
Date
1.
a)
Balanced
b)
Unbalanced
2.
a)
Balanced
b)
Unbalanced
3.
a)
Balanced
b)
Unbalanced
4.
a)
Balanced
b)
Unbalanced
5.
a)
Balanced
b)
Unbalanced
6.
a)
Balanced
b)
Unbalanced
7.
A girl is pushing a cart by herself with a force of 7 N. What will happen if a boy begins to help her and their combined force is 17 N?
a)
The cart will speed up.
b)
The cart will slow down.
c)
The cart will move at a constant speed in a straight line.
d)
The cart will fly to never never land!
8.
The boat moves to the left at a speed of 4 m/s. The current moves to the right at 2 m/s. What will happen if the current increases to 3 m/s?
a)
The boat will speed up.
b)
The boat will slow down.
c)
The boat will move backwards.
d)
The boat will continue sailing to the left at a constant speed of 4 m/s.
9.
At A the speed of the ball increases. At B, speed decreases. At C, speed is constant. Which points does the ball experience unbalanced forces?
a)
A and B
b)
B and C
c)
A and C
d)
A, B and C
10.
An unbalanced force can make all of these things happen except...
a)
a moving object changes direction
b)
an object just sits there
c)
a moving object speeds up
d)
a moving object stops
11.
this force is ___________ and there will be
a)
unbalanced, no movement
b)
balanced, movement to the left
c)
balanced, no movement
12.
Which of the following statements is true?
a)
Balanced forces cause a change in motion.
b)
Unbalanced forces cause a change in motion.
c)
Forces do not effect the change in motion.
13.
If all four forces are balanced, the plane will
a)
plummet to the ground
b)
fly faster and faster
c)
fly slower and slower
d)
fly at a constant speed and direction
14.
A wheeled cart is moving to the right at a constant speed. Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?
a)
Balanced Forces, Constant Speed
b)
Balanced Forces, Acceleration
c)
Unbalanced Forces, Constant Speed
d)
Unbalanced Forces, Acceleration
15.
Which could be an example of a balanced force?
a)
An asteroid moving at a constant speed through space
b)
A car accelerating from a stop sign
c)
A box of dishes falling from a counter
d)
A rocket taking off
16.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
17.
Which of the blocks above has balanced forces acting on it?
a)
A
b)
B
c)
C
d)
D
18.
If a 10 kilogram object accelerates suddenly at 15 m/s^2, how much force was applied to the object?
a)
150 Newtons
b)
15 Newtons
c)
150 kilograms
d)
100 kilograms
19.
If a force of 50 Newton's was applied to an object with a mass of 500 grams, what will the object's acceleration be?
a)
10 m/s^2
b)
.1 m/s^2
c)
100 m/s^2
d)
1 m/s^2
20.
If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration? (F=ma)
a)
The one with a mass of .78 kg will have the greatest acceleration.
b)
The one with a mass of .52 kg will have the greatest acceleration.
c)
They will both accelerate at the same rate.
21.
A 20 kg bike accelerates at 10 m/s2. what was the force?
a)
25 Newtons
b)
20 Newtons
c)
200 Newtons
d)
10 Newtons
22.
The masses of four objects are given in this table. If all objects are struck with the same amount of force, which one will have the greatest acceleration?
a)
Object 1
b)
Object 2
c)
Object 3
d)
Object 4
23.
Examine the table provided. Which of the objects is producing the greatest force?
a)
Soccer Ball
b)
Tennis Ball
c)
Marble
d)
Ping-Pong Ball
24.
A force of 90N is applied to each cart below, which one will accelerate the fastest?
a)
Cart 1
b)
Cart 2
c)
Cart 3
d)
Cart 4
25.
A basketball with a mass of 0.60 kg is accelerated with a force of 10.8 N. If resisting forces are ignored, what is the acceleration of the basketball to the nearest m/s2?
a)
16 m/s2
b)
17 m/s2
c)
18 m/s2
d)
19 m/s2
26.
a)
F
b)
G
c)
H
d)
J
27.
a)
2700 kg
b)
1200 kg
c)
120 kg
d)
270 kg
28.
a)
F
b)
G
c)
H
d)
J
29.
a)
A
b)
B
c)
C
d)
D
30.
a)
300 N
b)
100 N
c)
3 N
d)
250000 N
31.
a)
F
b)
G
c)
H
d)
J
32.
a)
F
b)
G
c)
H
d)
J
33.
a)
A
b)
B
c)
C
d)
D
34.
a)
4000 N
b)
400 N
c)
100 N
d)
1000 N
35.
a)
A
b)
B
c)
C
d)
D
36.
a)
1.8
b)
.05
c)
6.48
d)
18
37.
a)
.5
b)
.05
c)
6.48
d)
18
38.
a)
A
b)
B
c)
C
d)
D
39.
a)
2.07 N
b)
1740 N
c)
0.48 N
d)
207 N
40.
a)
A
b)
B
c)
C
d)
D
41.
a)
A
b)
B
c)
C
d)
D
42.
a)
F
b)
G
c)
H
d)
J
43.
a)
F
b)
G
c)
H
d)
J
44.
a)
A
b)
B
c)
C
d)
D
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