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WorksheetsUnit 1A Test - Motion
Total questions: 55
Worksheet time: 5hrs 35mins
Name
Class
Date
1.
A high speed train travels with an average speed of 454 km/h. The train travels for 4 h. How far does the train travel? (speed = distance / time)
a)
113.5 km
b)
113.5 h
c)
1,816 km
d)
1,816 h
2.
Sally sits on a rock. Her weight is an action force. Describe the rock’s reaction force.
a)
.It is pushed into the ground when she sits on it.
b)
It pushes up on her.
c)
It moves to the right.
d)
None of these
3.
As you get closer to the center of Earth, your weight will ____.
a)
decrease.
b)
remain the same.
c)
increase.
d)
none of these.
4.
Which example describes constant acceleration due ONLY to a change in direction?
a)
traveling around a circular track
b)
an object in free fall
c)
increasing speed while traveling around a curve
d)
an object at rest
5.
If gravity did NOT affect the path of a horizontally thrown ball, the ball would ____.
a)
go straight up.
b)
fall straight down.
c)
follow a curved path.
d)
continue to travel horizontally.
6.
A motorcycle drives 10 km in 40 minutes. What is his speed? (speed = distance/ time)
a)
4 m/s
b)
0. 25 km/min
c)
0.25 m/s
d)
4 km/min
7.
A train approaching a crossing changes speed from 25 m/s to 10 m/s in 240 s. How can the train’s acceleration be described?
a)
The train’s acceleration is positive.
b)
The train is not accelerating.
c)
The train will come to rest in 6 minutes.
d)
The train’s acceleration is negative.
8.
An object is accelerated at 15 m/s2 with a force of 6,000-N. The mass of the object is ____. (Force = mass x acceleration)
a)
400 N/m/s2
b)
90, 000 kg
c)
400 kg
d)
90, 000 N • kg
9.
The temperature and volume in a closed container of gas remain constant. If the number of particles of gas is increased, the gas pressure will ___.
a)
remain constant.
b)
cause a decrease in the average kinetic energy of the particles.
c)
increase.
d)
decrease.
10.
A horizontal line on a velocity/time graph shows ____ acceleration.
a)
changing
b)
positive
c)
negative
d)
zero
11.
Find the acceleration of a car that goes from 64 m/s to 96 m/s in 8.0 s. ( a = vf - vi / t)
a)
4 m/s2
b)
-4 m/s2
c)
4 m/s
d)
- 4 km/min
12.
When a force is exerted on a box, an equal and opposite force is exerted by the box. These forces are called ____ forces.
a)
balanced
b)
unbalanced
c)
frictional
d)
gravitational
13.
A car traveled 60 km in 2 hours , 45 km in the next hour , and then 100 km in 3 hours before reaching its destination. What was the car’s average speed?
a)
34.2 km/h2
b)
34.2 km/h
c)
41 km/h2
d)
41 km/h
14.
Stewie pushes a ball horizontally from the top of a tall building at the same time that Brian drops a ball from the top of the same building. Which ball will hit the ground first?
a)
Stewie’s ball because he threw the ball with force.
b)
Brian’s ball because he dropped the ball and gravity pulled it down faster.
c)
Both balls will hit at the same time because gravity pulls on each ball at the same rate.
d)
None of these
15.
Matter that has a definite volume and a definite shape is a ____
a)
solid
b)
liquid
c)
gas
d)
plasma
16.
According to ____, if you decrease the volume of a container of gas and hold the temperature constant, the pressure of the gas will increase.
a)
Archemedes' principle
b)
Bernoulli's principle
c)
Boyle's Law
d)
Charles's Law
17.
The forces acting on a falling leaf are ____.
a)
gravity and static friction.
b)
weight and rolling friction.
c)
air resistance and fluid friction.
d)
gravity and air resistance.
18.
During a phase change, there is never a _?_ change.
a)
pressure
b)
none of these
c)
volume
d)
temperature
19.
The particles that make up a solid move ____ than do the particles that make up a gas.
a)
mores slowly
b)
in the same way
c)
more quickly and farther apart
d)
more quickly
20.
An object moving at 100 m/s takes 10 s to come to a stop. What is the object’s acceleration?
(a = vf - vi / t)
(a = vf - vi / t)
a)
10 m/s
b)
-10 m/s
c)
-10 m/s2
d)
10 m/s2
21.
The most common state of matter in the universe is ___.
a)
solid.
b)
liquid.
c)
gas.
d)
plasma.
22.
35 m/s, southwest is an example of ____.
a)
speed.
b)
velocity.
c)
acceleration.
d)
friction.
23.
Which of the following are endothermic phase changes?
a)
sublimation, deposition, melting
b)
melting, vaporization, sublimation
c)
freezing, melting, condensation
d)
freezing, condensation, deposition
24.
A gas-like mixture with no definite volume or shape that is made up of positively and negatively charged particles is a ____.
a)
solid.
b)
liquid.
c)
gas.
d)
plasma.
25.
The theoretical point at which all molecular motion stops is called ____.
a)
the boiling point.
b)
the melting point.
c)
the freezing point.
d)
absolute zero.
26.
How are mass and weight are different from each other?
a)
Mass measures the amount of matter; weight measures the force of gravity on the matter.
b)
There is no difference; they are the same.
c)
Weight measures the amount of matter; mass measures the force of gravity on the matter.
d)
Cannot be determined.
27.
The size of the gravitational force between two objects depends on their ____.
a)
frictional forces.
b)
inertia.
c)
masses and the distance between them.
d)
speed and direction.
28.
Matter that has a definite volume but no definite shape is a ____.
a)
liquid.
b)
gas.
c)
plasma.
d)
solid.
29.
The acceleration due to gravity on the surface of the moon is about 1/6 of the acceleration due to gravity on Earth’s surface. The weight of a space probe on the surface of the moon is about___.
a)
one sixth its weight on Earth’s surface.
b)
six times less than its weight on Earth’s surface.
c)
six times greater than its weight on Earth’s surface.
d)
the same as its weight on Earth’s surface.
30.
The idea that matter is made up of small particles that are in constant motion is ____.
a)
heat of fusion.
b)
the kinetic theory of matter.
c)
Bernoulli’s principle.
d)
Charles’s law.
31.
A 20 kg objects accelerates at 25 m/s2 . What is the amount of force on the object? (F = ma)
a)
500 N
b)
500 kg/m/s2
c)
1.25 N
d)
cannot be determined
32.
Which of the following factors affects the pressure of an enclosed gas?
a)
temperature
b)
number of particles
c)
volume
d)
all of these
33.
A merry-go-round horse moves at a constant speed but at a changing ____.
a)
balanced force.
b)
inertia.
c)
unbalanced force.
d)
velocity.
34.
The path of a projectile is ____.
a)
curved.
b)
vertical.
c)
straight.
d)
horizontal.
35.
An object that is accelerating may be ____.
a)
changing direction.
b)
increasing in speed.
c)
slowing down.
d)
all of these.
36.
As the volume of a gas increases, the pressure of the gas will ____ if the temperature remains the same.
a)
contract.
b)
remain the same.
c)
decrease.
d)
increase.
37.
Bernoulli’s principle explains why ____.
a)
boats float.
b)
heated objects expand.
c)
heat of fusion exists.
d)
planes fly.
38.
As the temperature of a gas increases, the volume of the gas will ____ if the pressure remains the same.
a)
increase.
b)
decrease.
c)
remain the same.
d)
contract.
39.
The statement "to every action there is an equal and opposite reaction" is ____.
a)
the law of conservation of momentum
b)
Newton's second law of motion
c)
Newton's first law of motion
d)
Newton's third law of motion
40.
According to ____, as the velocity of a fluid increases, the pressure exerted by the fluid decreases.
a)
Charles’s law
b)
Boyle’s law
c)
Bernoulli’s principle
d)
Archimedes’ principle
41.
What is necessary for an object to accelerate?
a)
an inside force
b)
unbalanced forces
c)
balanced forces
d)
none of these
42.
If you ride your bike up a hill, then ride down the other side, your acceleration is ____.
a)
all poitive
b)
all negative
c)
first negative, then positive
d)
first positive, then negative
43.
A car has an acceleration of –5 m/s2. Describe the car’s motion.
a)
It’s going in circles.
b)
It’s speeding up.
c)
It’s slowing down.
d)
It’s going backwards.
44.
According to ____, the volume of a gas increases with increasing temperature, as long as pressure does not change.
a)
Boyle’s law
b)
Charles’s law
c)
Combined Gas Law
d)
Bernoulli’s principle
45.
The phase change that is the reverse of condensation is ___.
a)
vaporization.
b)
freezing.
c)
sublimation.
d)
deposition.
46.
The phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first is___.
a)
sublimation.
b)
vaporization.
c)
deposition.
d)
condensation.
47.
According to the diagram of Charles's Law, what would the temperature need to be to have a gas volume of 300 mL?
a)
300 K
b)
250 K
c)
300 L
d)
cannot be determined
48.
What must be the pressure on a gas in an enclosed space for its volume to reach 30?
a)
48
b)
40
c)
60
d)
55
49.
What phase change is occurring from Point E to Point D? What is happening to the bonds between the water molecules?
a)
condensation; they're breaking
b)
condensation; they are joining
c)
vaporization; they're breaking
d)
vaporization; they're joining
50.
Which image represents the particles in a solid?
a)
Picture 1
b)
Picture 2
c)
Picture 3
51.
In which picture are the forces of attraction among the particles so weak that they can be ignored under ordinary conditions?
a)
Picture 1
b)
Picture 2
c)
Picture 3
52.
What type of friction did the polar bear encounter?
a)
rolling
b)
static
c)
sliding
53.
What type of friction is holding the potted plant on the window sill?
a)
rolling
b)
static
c)
sliding
54.
If you move a substance from one container to another and its volume changes, the substance is a ___.
a)
solid
b)
liquid
c)
gas
d)
solution
55.
The force of gravity on Mars is 0.38 times the gravity on Earth. The mass of an object on Earth is 71 kg. What are the mass and weight of that object on Mars? (weight = mass x gravity)
a)
mass: 71 kg, weight: 710 N
b)
mass: 71 kg, weight: 270 N
c)
mass: 27 kg, weight: 270 N
d)
mass: 27 kg, weight: 103 N
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