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WorksheetsChapter 3 Forces and Motion
Total questions: 52
Worksheet time: 3hrs 36mins
Name
Class
Date
1.
Jane is sitting in the family car. Her mother is driving her from their house to the library. Jane waves as she passes her friend Marina. Which of the following is not moving with respect to Jane?
a)
Marina
b)
the family car
c)
the library
d)
Jane's house
2.
Which of the following is the best reference point for describing the motion of the planets in our solar system?
a)
a space ship in orbit about Earth
b)
the center of the Milky Way
c)
Earth
d)
the sun
3.
What is a reference point used to determine?
a)
motion
b)
velocity
c)
speed
d)
acceleration
4.
How do you calculate speed?
a)
D/T
b)
D x T
c)
final speed-initial speed/T
d)
initial speed-final speed/T
5.
The distance an object moves per unit of time.
a)
acceleration
b)
speed
c)
motion
d)
friction
6.
When you know both speed and the direction of an object , then you know the ___________ of the object.
a)
velocity
b)
acceleration
c)
directional speed
d)
unbalanced speed
7.
What is this graph representing?
a)
Constant Speed
b)
Acceleration (speeding up)
c)
Deceleration (slowing down)
d)
No motion
8.
The distance-time graphs shown represent the motion of a car. Which of the following graphs represents the car at constant speed?
a)
graph A
b)
graph B
c)
graph C
d)
graph D
9.
The following graph is important in explaining?
a)
Distance vs Time Graph. This graph can represent motion within object by identifying if an object is in motion, or not in motion.
b)
Speed vs. Time Graph. This graph can represent motion within object by identifying if an object is in motion, or not in motion.
10.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
11.
At 60 seconds, how far had this object traveled?
a)
0 m
b)
10 m
c)
20 m
d)
40 m
12.
How long did it take this object to travel 10 m?
a)
0 s
b)
10 s
c)
15 s
d)
20 s
13.
How many times does this object STOP moving?
a)
None
b)
Once
c)
Twice
d)
Three times
14.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
15.
While going to school, a student walks an average of 5 km/hr west for 12 blocks.
a)
Speed
b)
Acceleration
c)
Velocity
16.
What is the average speed of the person during the first 5 seconds?
a)
0 m/s
b)
1 m/s
c)
3 m/s
d)
6 m/s
17.
The rate at which velocity changes
a)
speed
b)
acceleration
c)
motion
d)
velocity
18.
Acceleration refers to ...
a)
increasing speed
b)
decreasing speed
c)
changing directions
d)
increasing speed, decreasing speed or changing direction
19.
What is the formula to calculate acceleration?
a)
D/T
b)
final speed-initial speed/T
c)
initial speed-final speed/T
d)
D x T
20.
What is the SI unit for force?
a)
meter
b)
liter
c)
Newton
d)
gram
21.
True or False: The larger the arrow the more the net force.
a)
True
b)
False
22.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
23.
If the net force is 0 the object is...
a)
in motion
b)
in the same place
24.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
25.
__________ is the sum of all forces acting on an object. It is capable of accelerating a mass.
a)
velocity
b)
gravity
c)
net force
d)
distance
26.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
27.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger
b)
smaller
c)
equal
28.
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
29.
What is Sliding Friction?
a)
Opposes submarines in the water and airplanes in the air
b)
Opposes the direction of an 0bject as it slides over a surface
c)
None of the above
d)
Change in shape the point of rolling contrast because of friction
30.
Force the opposes motion between 2 surfaces
a)
force
b)
Newton
c)
friction
d)
net force
31.
What are 2 factors that determine the amount of friction between 2 objects?
a)
Force and roughness between surfaces
b)
hills and valleys and how smooth or rough the surface is
c)
Amount of force and amount of surface the comes in contact
d)
The force and the weight exerted on the surfaces
32.
What type of friction is not moving?
a)
static
b)
dynamic
c)
kinetic
d)
rolling
33.
Which of the following is an example of rolling kinetic friction?
a)
box sliding across the floor
b)
bike rolling along the road
c)
car skidding to a stop
d)
soccer player making a slide tackle
34.
Oil between machine parts would be an example of which type of friction?
a)
static
b)
sliding
c)
fluid
d)
rolling
35.
A type of friction that occurs when air pushes against a moving object causing it to negatively accelerate
a)
surface area
b)
air resistance
c)
descent velocity
d)
gravity
36.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
37.
Which type of friction occurs when an object moves through a liquid or gas?
a)
sliding
b)
fluid
c)
static
d)
rolling
38.
As distance between two objects increase the pull of gravity
a)
Increases
b)
Decreases
c)
Stays the same
39.
The amount of matter in an object is
a)
pressure
b)
weight
c)
mass
d)
force
40.
A person would weigh less on on the Moon than on the Earth because . . .
a)
Moon has more mass, and therefore more gravity
b)
Moon has less mass, and therefore more gravity
c)
Moon has more mass, and therefore less gravity
d)
Moon has less mass and therefore less gravity
41.
As mass increases, what happens to gravitational force?
a)
increases
b)
decreases
c)
stays the same
d)
i don't know
42.
Gravity is the force objects put on each other because of their ______.
a)
Mass
b)
Friendliness
c)
Acceleration
d)
Speed
43.
The amount that gravity pulls on you is called
a)
mass
b)
volume
c)
density
d)
weight
44.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
45.
What is Newton's First Law
a)
F=ma
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion.
d)
Friction
46.
Which has more Inertia? (so need more force to move)
a)
Truck
b)
Ant
c)
A cat
d)
A skateboard
47.
What two forces affect gravity?
a)
mass and inertia
b)
mass and distance
c)
mass and force
d)
mass and weight
48.
Which term refers to the resistance to start or stop movement?
a)
Inertia
b)
Friction
c)
Unbalanced forces
d)
Acceleration
49.
Inertia depends on...
a)
speed
b)
velocity
c)
acceleration
d)
mass
50.
Why does a car accelerate as it round a corner at a constant speed?
a)
Its direction changes
b)
It doesn't
c)
It slows down
d)
Its speeds up
51.
_____ = mass x acceleration
a)
Gravity
b)
Strength
c)
Force
d)
Weight
52.
Newton's third law states that any action will have a(n) _______ and ______ reaction
a)
Equal and similar
b)
Equal and opposite
c)
Equal and different
d)
Greater and opposite
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