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WorksheetsMotion, Force and Speed
Total questions: 42
Worksheet time: 1hrs 6mins
Name
Class
Date
1.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
2.
What type of friction is not moving?
a)
static
b)
sliding
c)
fluid
d)
rolling
3.
How can friction be reduced?
a)
reduce the force acting between the 2 surfaces
b)
reduce the roughness of the 2 surfaces coming in contact
c)
use wax, grease or oil
d)
all of the above are ways of reducing friction
4.
How would the absence of friction (NO Friction) affect a marble traveling on a long, straight path?
a)
The marble’s speed would decrease.
b)
The marble’s speed would increase.
c)
The marble would stop immediately.
d)
The marble would remain at constant speed.
5.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
6.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
7.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced
a)
12 N Right No
b)
4 N Left No
c)
12 N Right Yes
d)
4 N Left Yes
8.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger
b)
smaller
c)
equal
9.
What is force?
a)
A push exerted on an object
b)
A push or pull exerted on an object
c)
A pull exerted on an object
d)
Nothing
10.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
11.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
12.
What famous scientist was the SI units of Force named after?
a)
Isaac Newton
b)
Galileo Galilei
c)
Albert Einstein
d)
Charles Darwin
13.
What is the standard unit force is measured in?
a)
N
b)
lbs
c)
g
d)
m/s
14.
When two children of equal weight sit at opposite ends of a seesaw, they create
a)
gravity
b)
unbalanced forces
c)
motion
d)
balanced forces
15.
What is MOVEMENT?
a)
Inertia
b)
Force
c)
Work
d)
Motion
16.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
17.
Why does a rolling ball stop?
a)
Gravity
b)
Friction
c)
Waterfalls
d)
Sand
18.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
19.
If two forces act on an object in the same direction, the net force is the _____________
a)
the difference between the two forces
b)
the sum of the two forces
c)
Only one of the forces acts on the object
d)
DOOMSDAY!
20.
What is the difference between the velocity and the speed of an object?
a)
Velocity is the change in distance over time, while speed is the change in velocity overtime.
b)
Velocity has a direction associated with it, while speed has no specific direction.
c)
Velocity has no direction associated with it, while speed has a specific direction.
d)
Velocity is the change in speed over time, while speed is the change in distance over time.
21.
The arrows in the diagram below represent the forces acting on a moving bicycle at two different times, time 1 and time 2. The length of the arrow represents the amount of force being applied. As a result of the change in the forces from time 1 to time 2 the bicyclist will...
a)
move slower in a forward direction
b)
move faster in a forward direction
c)
move in a backward direction
d)
stop moving
22.
Students are exploring the relationship between velocity and acceleration. This graph shows the acceleration of a remote-controlled toy car. Which statement is TRUE based on the graph?
a)
Segment AB and Segment CD show positive acceleration.
b)
Segment OA and Segment DE show positive acceleration.
c)
Segment OA and Segment BC show constant speed.
d)
Segment BC and Segment EF show constant speed.
23.
A student rolls a ball down the ramp shown in the picture below. The ramp is supported by four stacked books. The student removes two books from the stack supporting the ramp and rolls the ball down the ramp again. Which of the following statements best describes how the ball's motion is different after the books are removed?
a)
The ball takes more time to reach the bottom of the ramp.
b)
The ball has a higher speed at the top of the ramp.
c)
The ball accelerates more quickly down the ramp.
d)
The ball has a higher average speed when it rolls off the ramp.
24.
A student made a track for a toy sled using four different materials. At which section of the track is friction MOST LIKELY to cause the greatest resistance to the motion of the toy sled?
a)
3
b)
1
c)
4
d)
2
25.
Four forces are acting on a box, as shown below. This box will increase in speed...
a)
upward and to the right.
b)
downward and to the right.
c)
upward and to the left.
d)
downward and to the left.
26.
The following graph represents an object's velocity over a period of time. Which of these describes the object's motion after the time shown on the graph?
a)
Its velocity will increase.
b)
It will slow down eventually stop moving.
c)
Its acceleration will increase.
d)
It will continue to move at a constant rate in a straight lane.
27.
A student pushes against a tree with a force of 10 newtons (N). The tree does not move. What is the amount of force exerted by the tree on the student?
a)
0 N
b)
5 N
c)
10 N
d)
20 N
28.
A force is acting on each of the objects below. What can be concluded about these forces?
a)
They are the same because they point toward the objects.
b)
They are the same because they have the same magnitude.
c)
They are different because they have different magnitudes.
d)
They are different because they have different directions.
29.
Acceleration is the rate of change of ___________.
a)
velocity
b)
speed
c)
direction
d)
position
30.
What does the following equation represent?
p = m x v
p = m x v
a)
Net force
b)
acceleration
c)
momentum
d)
position
31.
A larger force acting on an object causes a greater ____________ of the object.
a)
velocity
b)
inertia
c)
acceleration
d)
force
32.
Which is a velocity?
a)
200 mph
b)
200 mph north
c)
800 miles north
d)
800 miles
33.
The unit meters per second (m/s with direction) is used for which of the following?
a)
Distance
b)
Time
c)
Velocity
d)
Acceleration
34.
Car #1 that traveled 160 kilometers in 5 hours, and Car #2 traveled 140 kilometers in the same time. Which car traveled faster?
a)
Car #1
b)
Car #2
c)
Their speeds are equal.
35.
Car #1 traveled 160 kilometers in 5 hours, and Car #2 traveled 140 kilometers in the same time. 1. What is the difference in average speed between two cars? (Hint: You have to subtract their speeds!)
a)
32 miles per hour
b)
28 miles per hour
c)
4 miles per hour
d)
Their speeds are the same
36.
A dog can run 50 km in 5 days and a cat can run 15 km in 3 days. What is the difference in the two speeds? (Hint: You need to subtract!)
a)
10 km/day
b)
5 km/day
c)
15 km/day
d)
50 km/day
37.
What is the average speed of the ball if it falls 20 meters 40 seconds?
a)
A. 20 m/s
b)
B. 10 m/s
c)
C. 0.5 m/s
d)
D. 2 m/s
38.
Marlon decided to visit Dallas, which is 210 miles away from Houston. His trip took him 3 hours to complete. Calculate his average speed.
a)
60 mph
b)
64 mph
c)
70 mph
d)
3 mph
39.
Acceleration is ALWAYS produced when force are _____.
a)
Balanced
b)
Unbalanced
40.
There is NEVER acceleration if forces are __________.
a)
Balanced
b)
Unbalanced
41.
Balanced forces cause _______________.
a)
No acceleration.
b)
Sometimes acceleration.
c)
Always acceleration.
42.
Unbalanced forces cause __________.
a)
No acceleration.
b)
Sometimes acceleration.
c)
Always acceleration.
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