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WorksheetsPhysics Semester 1 Review Part 1
Total questions: 70
Worksheet time: 45mins
Name
Class
Date
1.
A theory ________ becomes a law.
a)
sometimes
b)
always
c)
never
2.
Which one of the following steps is NOT a part of the scientific method?
a)
Perform experiments to test the predictions.
b)
Repeat the experiments until the answers match the predictions.
c)
Formulate a general rule based on the predictions and experimental outcome.
d)
Make a guess about the answer to a problem and predict its consequences.
3.
Why should an experiment be repeated?
a)
to form a hypothesis
b)
to reduce the chance of error
c)
to change controls
d)
to identify the problem
4.
What is the first step in a commonly used scientific method?
a)
digging for artifacts
b)
drawing conclusions
c)
controling variables
d)
recognizing a problem
5.
A scientific conclusion is based on
a)
variables and experiments
b)
observations and questions
c)
facts and observations
d)
tools and evidence
6.
A valid scientific investigation must be able to be
a)
replicated
b)
graphed
c)
predicted
d)
observed
7.
A hypothesis is
a)
an educated guess that has yet to be proven by experiment.
b)
close agreement by competent observers of observations of the same phenomena.
c)
a guess that has been tested over and over again and always found to be true.
d)
a synthesis of a large collection of information that includes guesses.
8.
A scientific fact is
a)
something you believe is true because you have been taught it.
b)
a guess that has been tested over and over again and always found to be true.
c)
close agreement by competent observers of observations of the same phenomena.
d)
an educated guess that has yet to be proven by experiment.
9.
The difference between a hypothesis and a theory is that a hypothesis is
a)
never true whereas a theory is always true.
b)
true whereas a theory is not true.
c)
never true whereas a theory is sometimes true.
d)
an educated guess whereas a theory has been tested successfully many times in many ways.
10.
Which of these is a scientific hypothesis?
a)
Atoms are the smallest particles of matter that exist.
b)
Albert Einstein is the greatest physicist of the twentieth century.
c)
The universe is surrounded by a second universe, which cannot be seen.
11.
Science, art, and religion do not contradict one another because
a)
if you choose religion and art you can forget about science.
b)
all three have different domains.
c)
if you choose the right one, you can forget the other two.
d)
if you choose science you can forget about religion and art.
12.
Which of the following is a reason to express scientific findings mathematically?
a)
The findings become more difficult to prove by experiment.
b)
The findings become easier to verify by experiment.
c)
The findings become more confusing.
d)
The findings become less appealing to the public.
13.
When you look at the speedometer in a moving car, you can see the car's
a)
average distance traveled.
b)
instantaneous acceleration.
c)
average speed.
d)
instantaneous speed.
14.
Suppose you are in a car that is going around a curve. The speedometer reads a constant 30 miles per hour. Which of the following is NOT true?
a)
You and the car are accelerating.
b)
Your acceleration is constantly changing.
c)
Your velocity is constant.
d)
Your direction is constantly changing.
15.
A train travels 6 meters in the first second of travel, 6 meters again during the second second of travel, and 6 meters again during the third second. Its acceleration is
a)
0 m/s/s
b)
6 m/s/s
c)
12 m/s/s
d)
18 m/s/s
16.
As an object falls freely in a vacuum, its
a)
velocity increases
b)
acceleration increases
c)
all of the above
d)
none of the above
17.
In the absence of air resistance, objects fall at constant
a)
speed
b)
velocity
c)
acceleration
d)
all of the above
18.
A ball is thrown upwards and caught when it comes back down. In the absence of air resistance, the speed of the ball when caught would be
a)
less than the speed it had when thrown upwards.
b)
more than the speed it had when thrown upwards.
c)
the same as the speed it had when thrown upwards.
19.
If you drop a feather and a coin at the same time in a tube filled with air, which will reach the bottom of the tube first?
a)
The feather
b)
Neither—they will both reach the bottom at the same time.
c)
The coin
20.
Consider drops of water leaking from a water faucet. As the drops fall they
a)
remain at a relatively fixed distance from each other.
b)
get farther apart.
c)
get closer together.
21.
A ball tossed vertically upward rises, reaches its highest point, and then falls back to its starting point. During this time the acceleration of the ball is always
a)
in the direction of motion.
b)
opposite its velocity.
c)
directed downward.
d)
directed upward.
22.
A scientific fact is something that is absolute and unchanging.
a)
True
b)
False
23.
A hypothesis is not scientific if there exists no test for proving it wrong.
a)
True
b)
False
24.
The rate at which distance is covered is called speed.
a)
True
b)
False
25.
When a car rounds a corner at a constant speed, its acceleration is zero.
a)
True
b)
False
26.
Even though a car is slowing down, it is still accelerating, in the most general definition of acceleration.
a)
True
b)
False
27.
A scientific theory is proven true through experiments and observations.
a)
True
b)
False
28.
A push or a pull that can move an object is a __________.
a)
gear
b)
lever
c)
force
d)
machine
29.
Which of Newton Laws applies:
A rocket launches by sending gases downward towards the ground causing the rocket to move upward.
A rocket launches by sending gases downward towards the ground causing the rocket to move upward.
a)
Equal and Opposite Reaction
b)
Law of Inertia
c)
Force equals mass times acceleration.
d)
I don't know.
30.
Because of inertia, an object tends to move ________.
a)
towards a larger object
b)
in a curved path
c)
away from a larger object
d)
in a straight path
31.
The force that opposes the motion of two surfaces sliding past each other is called ___________.
a)
acceleration
b)
inertia
c)
friction
d)
unbalanced
32.
________ is an object's tendency to travel in a straight line or to resist motion.
a)
Inertia
b)
Acceleration
c)
Mass
d)
Gravity
33.
Average speed is found by __________.
a)
dividing the total distance traveled by the total time
b)
multiplying the displacement by the time spent
c)
multiplying the total distance traveled by the time spent
d)
subtracting the time spent traveling from the total distance traveled
34.
The direction and speed of an object is an object's _________.
a)
velocity
b)
average displacement
c)
average speed
d)
displacement
35.
The force resulting from the pull of the earth on an object.
a)
mass
b)
gravity
c)
acceleration
d)
unbalance
36.
Where in the universe does gravity act?
a)
nowhere
b)
only on Earth
c)
only between the Sun and planets
d)
everywhere
37.
A mass of 20 kg is accelerated at a rate of 50 m/s2 , the total force is 1200 Newtons.
a)
True
b)
False
38.
Objects in motion stay in motion, objects at rest stay at rest unless acted upon by an outside force.
a)
Inertia/ Newtons 1st law of motion
b)
Newtons 2 nd law of motion
39.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
40.
______is a unit of speed.
a)
M/s
b)
S
c)
Kg
d)
hr
41.
Velocity is
a)
The slope of a linear graph
b)
acceleration divided by displacement
c)
speed with direction
d)
the same in all reference frames
42.
Everywhere in the universe an object's ______ is the same.
a)
Friction
b)
Weight
c)
Mass
d)
Gravity
43.
What is mass?
a)
The amount of matter in an object
b)
the weight of an object
c)
none of the above
d)
Gravity
44.
The SI unit for force is the Netwon.
a)
True
b)
False
45.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
46.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
47.
What is the net force
a)
10 N
b)
0 N
c)
25 N
d)
1 N
48.
Forces that have a net force that is not zero ( object will move).
a)
Balanced force
b)
Unbalanced force
49.
The measure of the pull of gravity on an object is ___________________.
a)
motion
b)
weight
c)
speed
d)
friction
50.
Which law explains why when you put a book on a table the table pushes on the book
a)
3rd law
b)
4th law
c)
1st law
d)
2nd law
51.
When Ronda Rousey got kicked in the face, What is the interaction pair?
a)
The foot and the face
b)
Ronda Rousey and media criticism
c)
The foot and the air flow
d)
Ronda Rousey and the floor
52.
A bus hits a bug and the bug splatters on the windshield, which force is greater?
a)
The Bus
b)
The Bug
c)
They're the same
d)
Gravity acting on the bus
53.
A book rests on a table. The force of gravity pulls down on the book with a force of 20 newtons. What prevents the books from accelerating downward at 9.8 m/sec2
a)
The table presses back up on the book with an equal and opposite force of 20 newtons.
b)
The table presses back up on the book with a force greater than 20 newtons.
c)
The table and the book together are accelerating downwards at 9.8 m/sec2
d)
The inertia of the book holds it up
54.
A 20 kg bike accelerates at 10 m/s2. How much force was applied?
a)
25
b)
200 N
c)
20 N
d)
10 N
55.
A bike accelerates at 10 m/s2 when a force of 50N is applied. What is the mass of the bike and its rider?
a)
25 kg
b)
200 kg
c)
20 kg
d)
5 kg
56.
When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?
a)
The cannon moving forward
b)
The cannonball moving forward
c)
The cannon moving backward
d)
The cannonball moving backward
57.
A person is pushed forward into their seat belt when a car stops. Which law is this?
a)
1st
b)
2nd
c)
2 and 3
d)
3rd
58.
Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?
a)
first
b)
second
c)
third
d)
fourth
59.
What is the force applied to all objects on Earth?
a)
Earthquakes
b)
Gravity
60.
Who created the Universal Law of Gravitation?
a)
Copernicus
b)
Newton
c)
Kepler
d)
Galileo
61.
What is the value of g on Earth?
a)
9.81 m/s^2
b)
9.81 N
c)
9.81 m
d)
9.81 s/m^2
62.
Two factors effecting the magnitude of the force of gravity between 2 objects are...
a)
mass and distance
b)
mass and matter
c)
distance and weight
d)
weight and mass
63.
Force of gravity is directly proportional to
a)
Mass
b)
Weight
c)
Distance
d)
Time
64.
Force of gravity is inversely proportional to
a)
Mass
b)
Weight
c)
Distance
d)
Time
65.
As distance between two objects increase the pull of gravity
a)
Increases
b)
Decreases
c)
Stays the same
66.
What is the tendency of an object to resist a change in motion?
a)
coffee
b)
motion
c)
inertia
d)
gravity
67.
If the force of gravity has been reduced by 1/4 which could be true?
a)
Mass was increased 4 times
b)
Mass was decreased 2 times
c)
Distance was increased 4 times
d)
Distance was doubled
68.
Double the mass of an object
a)
4 times stronger gravity force
b)
4 times weaker gravity force
c)
2 times weaker gravity force
d)
2 times stronger gravity force
69.
How can you explain that we have a stronger gravitational attraction with the Earth than the Sun?
a)
The sun has a larger mass
b)
The sun has a smaller mass
c)
Closer to center of the sun
d)
Closer to center of the Earth
70.
Bonus Question: Is Jingle all the way the best christmas movie ever?
a)
You better believe it!
b)
you're wrong
c)
Stop thinking, you are wrong!
d)
Stop, Stop, Stop! This was supposed to be an easy question.
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