WorksheetsSemester 1 Final- Physical Science
Total questions: 63
Worksheet time: 32mins
Name
Class
Date
1.
What is the part of an experiment that serves as a standard for comparison?
a)
Control group
b)
Constant
c)
Hypothesis
d)
Variable
2.
A testable prediction that predicts a cause and effect relationship between variables is a(n) ____.
a)
analysis
b)
hypothesis
c)
observation
d)
inference
3.
Where does the dependent variable go on a graph?
a)
X- axis
b)
Y-axis
c)
In the title
d)
In the key
4.
Why is it advisable to use tongs when taking a beaker off a laboratory burner?
a)
It prevents spilling.
b)
It prevents the beaker from breaking.
c)
It looks cool.
d)
It allows you to move it if it is too hot.
5.
A factor in an experiment that changes in response to the independent variable is the _____.
a)
constant
b)
control group
c)
independent variable
d)
dependent variable
6.
If your lab partner's clothes catch on fire, you should first _______________.
a)
use a fure extinguisher
b)
panic
c)
do nothing. It will burn out eventually.
d)
tell the teacher
7.
All of the following are steps in the scientific method EXCEPT
a)
observing and recording data.
b)
forming a hypothesis.
c)
developing a model.
d)
discarding data that doesn't match the hypothesis.
8.
The best type of graph to use to show the percentage of a whole is the ______.
a)
Bar graph
b)
Circle Graph
c)
Line Graph
d)
Scatter Graph
9.
A factor that does NOT change in an experiment is the ______.
a)
constant
b)
control group
c)
dependent variable
d)
independent variable
10.
The "cause" of the experiment, what we are purposefully manipulating or changing is the ______.
a)
constant
b)
control group
c)
dependent variable
d)
independent variable
11.
Mrs. James wants to measure the volume of a liquid very precisely. What is the BEST lab equipment she could use to do this?
a)
beaker
b)
test tube
c)
graduated cylinder
d)
erlenmeyer flask
12.
Which of the following is a quantitative observation?
a)
The dog has two legs.
b)
The dog is small.
c)
The dog is cute.
d)
The dog is fuzzy.
13.
Method for appropriately smelling unknown substance in lab.
a)
Waft
b)
Law
c)
Theory
d)
Observation
e)
Inference
14.
An explanation of why things or events happen based on knowledge gained from many observation and investigation.
a)
Theory
b)
Law
c)
Observation
d)
Inference
e)
Conversion factor
15.
Subjective; based on opinions or assumptions.
a)
Inference
b)
Law
c)
Theory
d)
Observation
e)
Conversion factor
16.
Ratios of equivalent values.
a)
Conversion factor
b)
Law
c)
Theory
d)
Observation
e)
Inference
17.
Statement about how things happen in nature that seems to be true all the time.
a)
Law
b)
Theory
c)
Observation
d)
Inference
e)
Conversion factor
18.
Objective; based on information gathered using the five senses.
a)
Observation
b)
Law
c)
Theory
d)
Inference
e)
Conversion factor
19.
A group of students is playing tug of war. The students on both sides of the rope are pulling with equal force so that the rope is not moving. This is an example of
a)
unbalanced forces
b)
balanced forces
c)
acceleration
d)
displacement
20.
A firefighter feels the hose pushing backwards onto him as he uses it to put out a fire. What is the most likely cause of this?
a)
The hose material is very elastic
b)
Since the hose is at a rest, it tends to stay at rest.
c)
The force exerted on the water equals the mass of the water times its acceleration.
d)
The escaping water exerts an equal and opposite force on the hose.
21.
Which of the following is measured in Newtons?
a)
weight
b)
momentum
c)
mass
d)
acceleration
22.
The upward force on an object falling through the air is _____.
a)
air resistance
b)
momentum
c)
inertia
d)
gravity
23.
The relationship among mass, force, and acceleration is explained by _______.
a)
Law of Conservation of Momentum
b)
Newton's 1st Law of Motion
c)
Newton's 2nd Law of Motion
d)
Newton's 3rd Law of Motion
24.
According to Newton's laws, for any object, the greater the force that's applied to it, the greater its _____ will be.
a)
acceleration
b)
inertia
c)
gravity
d)
size
25.
The size of the gravitational force between two objects depends on their _______.
a)
frictinal forces
b)
inertia
c)
masses and the distance between them
d)
speed and direction
26.
An astronaut is planning a trip to a newly discovered planet. According to the Law of Universal Gravitation, the astronaut's weight on the new plant will be greater than his weight on Earth if:
a)
the new planet has less gravity than Earth.
b)
the new plant has the same gravity as Earth.
c)
the new plant has more gravity than Earth.
d)
the gravity of the planet doesn't matter. Weight is the same everywhere in the universe.
27.
"To every action there is an equal and opposite reaction" describes which law?
a)
Law of conservaton of Momentum
b)
Newton's 1st Law of Motion
c)
Newton's 2nd Law of Motion
d)
Newton's 3rd Law of Motion
28.
The ______ of an object does not change, but its ______ can, based on its location.
a)
mass, volume
b)
mass, weight
c)
weight, mass
d)
weight, volume
29.
When two forces on the same object are equal and opposite, these forces are called ______ forces.
a)
net
b)
balanced
c)
unbalanced
d)
frictional
30.
As the mass of an object increases, its inertia will ______.
a)
decrease
b)
increase
c)
stay the same
d)
unable to determine
31.
Which two quantities are measured in the same units?
a)
velocity and acceleration
b)
weight and force
c)
mass and weight
d)
force and mass
32.
A student drops a feather and a rock at the same time from Mrs. Taylor's window. If air resistance wasn't a factor, what should she observe?
a)
The rock falls slower than the feather.
b)
The rock falls faster than the feather.
c)
The rock and feather fall at the same rate.
d)
The rock and feather remain suspended and do not fall.
33.
A man weighing 800 N is standing on a chair. In order to support the man, what force is the chair exerting?
a)
less than 800 N
b)
greater than 800 N
c)
800 N up
d)
800 N down
34.
An object that is falling freely has a constant what?
a)
speed
b)
velocity
c)
acceleration
d)
nothing is constant
35.
The speed you read on a speedometer is ______.
a)
instantaneous speed
b)
constant speed
c)
average speed
d)
velocity
36.
3 m/s north is an example of a(n) ______.
a)
speed
b)
velocity
c)
direction
d)
acceleration
37.
A car moves around a wide turn going 45 mi/hr the whole time. The car has a constant ______.
a)
speed
b)
velocity
c)
direction
d)
acceleration
38.
If you ride your bicycle down a straight road for 500m then turn around and ride back to your starting point, your distance is _____ your displacement.
a)
greater than
b)
equal to
c)
less than
d)
can't determine
39.
Motion is a change in _______.
a)
time
b)
speed
c)
velocity
d)
position
40.
An indicator that orients you when describing motion is called the ________.
a)
time
b)
speed
c)
velocity
d)
position
41.
How long will it take an object traveling at 25 m/s to reach a distance of 125 meters?
a)
5 s
b)
0.2 min
c)
5 m
d)
0.2s
42.
A high- speed train travels with an average speed of 227 km/hr. The train travels for 2 hrs. How far does the train travel?
a)
113.5 km
b)
454 km
c)
0.0088 km
d)
225 km/min
43.
What does the slope of a distance vs. time graph tell you?
a)
the total distnace traveled
b)
the speed of the object
c)
the time it took for the object to travel
d)
the acceleration
44.
A horizontal (flat) line on a velocity vs. time graph shows ________ acceleration.
a)
positive
b)
negative
c)
changing
d)
zero
45.
Acceleration is rate of change of ______.
a)
position
b)
time
c)
velocity
d)
speed
46.
Which statement about the movement of an object with zero acceleration could be true?
a)
the object is speeding up
b)
the object is slowing down
c)
the object is moving at a constant speed
d)
the object is changing direction
47.
A car travels a distance of 98 meters in 10 seconds. What is the average speed of the car?
a)
4.9 m/s
b)
49 m/s
c)
9.8 m/s
d)
98 m/s
48.
A group of bike riders took a 4 hour trip. During the first 3 hours, they traveled a total of 50 km, but during the last hour they traveled only 10 km. What was the group's average speed for the entire trip?
a)
60 km/hr
b)
40 km/hr
c)
30 km/hr
d)
15 km/hr
49.
What is true about a car with constant velocity?
a)
it has a positive acceleration
b)
it has zero acceleration
c)
it has a negative acceleration
d)
it has a changing direction
50.
The _______ energy of an object increases with its height.
a)
chemical potential
b)
kinetic
c)
thermal
d)
gravitational potential
51.
An object that has kinetic energy must be
a)
lifted above Earth's surface
b)
in motion
c)
at rest
d)
changing direction
52.
The law of _____ states that energy must be transferred, never created or destroyed.
a)
conservation of energy
b)
consecration of energy
c)
conversion of energy
d)
construction of energy
53.
The kinetic energy of an object increases as its _______ increases.
a)
height
b)
speed
c)
volume
d)
potential energy
54.
When a ball is dropped it bounces until it eventually stops. Why does this happen?
a)
Some of the ball's energy is lost.
b)
Some of the ball's energy is converted to other forms, such as thermal and sound.
c)
All of the ball's energy is eventually converted to potential energy when the ball stops bouncing.
d)
All of the ball's energy is eventually converted to kinetic energy when the ball stops bouncing.
55.
Energy stored in food would be considered
a)
chemical potential
b)
kinetic
c)
thermal
d)
gravitational potential
56.
Conduction is the transfer of heat energy by ________
a)
direct particle contact
b)
electromagnetic waves
c)
density differences
d)
movement through a vacuum
57.
An example of an energy conversion from kinetic to thermal energy would be
a)
friction
b)
television
c)
flower
d)
gravity
58.
Green plants convert light energy from the sun into _____ during photosynthesis.
a)
gravitational potential energy
b)
chemical potential energy
c)
thermal energy
d)
mechanical energy
59.
The mechanical energy of a coconut falling from a tree _____.
a)
doesn't exist
b)
increases
c)
decreases
d)
remains constant
60.
A material that resists/ limits the flow of heat by conduction, convection, and radiation is a(n) _______.
a)
conductor
b)
insulator
c)
radiator
d)
generator
61.
The ______ energy of an object depends on both the height and the mass of an object.
a)
radiant
b)
kinetic
c)
chemical
d)
gravitational potential
62.
Temperature measures the average _______ of the particles in a material.
a)
chemical energy
b)
kinetic energy
c)
potential energy
d)
mechanical energy
63.
When an object is dropped what happens to potential and kinetic energy as it falls?
a)
GPE goes up, KE goes down
b)
GPE goes up, KE goes up
c)
GPE goes down, KE goes down
d)
GPE goes down, KE goes up
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