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WorksheetsPhysical Science Fall Exam 2024
Total questions: 100
Worksheet time: 1hrs 15mins
A testable prediction that predicts a cause-and-effect relationship between variables is a(n)?
analysis
observation
hypothesis
inference
On an X-Y (line) graph, the Dependent Variable should be plotted where?
X-axis
In the key
In the Title
Y-axis
A factor in an experiment that changes in response to the independent variable is the ____.
dependent variable
control group
independent variable
constant
What is the part of an experiment that serves as a standard for comparison?
Control Group
Constant
Hypothesis
Variable
All the following are steps in the scientific method EXCEPT:
observing and recording data
forming a hypothesis.
Reporting conclusions.
discarding data that doesn't match the hypothesis.
The best type of graph to use to show the percentages of a whole is a
Bar graph
Line Graph
Circle Graph
Scatter Graph
A factor that does NOT change in an experiment is the:
constant
control group
dependent variable
independent variable
The "cause" of the experiment, what we are purposefully manipulating or changing is the
constant
control group
dependent variable
independent variable
What is 870,900,000 expressed in scientific notation?
8709 x 10^5
8.709 x 10^9
8.709 x 10^8
8.709 x 10^6
The speed of light is approximately 3.0 x 10^8 m/s. How would this be written in standard notation?
300,000 m/s
30,000,000 m/s
3,000,000 m/s
300,000,000 m/s
What is the BEST choice of lab equipment to measure a small volume of liquid as precisely as possible?
beaker
test tube
graduated cylinder
Erlenmeyer flask
Which of the following is a quantitative observation?
The dog has two legs.
The dog is small.
The dog is cute.
The dog is fuzzy.
The speed you read on a speedometer is ____.
instantaneous speed
constant speed
average speed
velocity
3 m/s north is an example of a(n) _____.
speed
velocity
time
acceleration
A car moves around a wide turn going 45 mi/hr the whole time. The car has a constant _____.
position
velocity
direction
acceleration
If you ride your bicycle down a straight road for 500 m then turn around and ride back to your starting point, your distance is _____ your displacement.
greater than
equal to
less than
can't determine
Motion is a change in _____.
time
speed
velocity
position
A __________ is required when describing motion.
time
speed
reference point
formula
How long will it take an object moving at 25 m/s to travel a distance of 125 meters?
5 s
0.2 min
5 m
0.2 s
A cross-country runner runs 10 km in 40 minutes. What is his average speed?
30 km/min
4 km/min
400 km/min
0.25 km/min
What does the slope of a distance vs. time graph tell you?
the total distance traveled
the velocity of the object
the time it took for the object to travel
the acceleration
A horizontal line on a velocity vs. time graph shows ____ acceleration.
positive
negative
changing
zero
Acceleration is rate of change of ____.
position
time
velocity
speed
The graph represents the change in velocity of four cars over a period of 10 hours. Which line represents the car with the greatest acceleration?
Car A
Car B
Car C
Car D
The horses on a carousel or merry-go-round are accelerating because ____.
the speed of the horses is constantly increasing
the speed of the horses is constantly decreasing
the direction of the horses’ motion is constantly changing
the travel time is different for every ride
What variable is on the Y-axis on the graph?
velocity
acceleration
time
motion
In this velocity vs. time graph, the person at point A:
has zero acceleration.
has positive acceleration.
has negative acceleration
Not enough information
In this velocity vs. time graph, the person at point B:
has zero acceleration.
has positive acceleration.
has negative acceleration
Not enough information
In this velocity vs. time graph, the person at point C:
has zero acceleration.
has positive acceleration.
has negative acceleration
Not enough information
At what point is the rate of change of velocity (acceleration) the greatest?
A
B
C
Not enough information to determine.
A car traveling at 30 m/s hits the gas pedal and speeds up to 65 m/s in 3.5 sec. What is the car’s acceleration?
5 m/s2
15 m/s2
10 m/s2
20 m/s2
Which statement about the movement of an object with zero acceleration could be true?
the object is speeding up
the object is slowing down
the object is moving at a constant speed
the object is changing direction
What does the slope of this graph tell you?
speed
acceleration
time
distance
Which time interval has the greatest speed?
0 - 1 s
1 – 2 s
3 – 4 s
4 – 6 s
What is most likely the instantaneous speed at 5 s?
13 m/s
3 m/s
13 mi/hr
3 mi/hr
What is the average speed of the bicyclist’s ride?
45 m/s
7.5 m/s
45 mi/hr
7.5 mi/hr
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?
60 km/hr
40 km/hr
30 km/hr
15 km/hr
What is true about a car with constant velocity?
it has a positive acceleration
it has zero acceleration
it has a negative acceleration
it has a changing direction
The velocity of an object must include both a ____________________ and a ____________________.
speed, direction
speed, time
positive, negative
distance, direction
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
unbalanced forces
balanced forces
acceleration
displacement
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?
The hose material is very elastic.
Since the hose is at rest, it tends to stay at rest.
The force exerted on the water equals the mass of the water times its acceleration.
The escaping water exerts an equal and opposite force on the hose.
If the same force is applied to each of the balls pictured, which one will have the LEAST acceleration?
Ball A
Ball B
Ball C
Ball D
Which of the following is measured in Newtons?
force
momentum
mass
acceleration
The upward force on an object falling through the air is ____.
air resistance
momentum
inertia
gravity
The relationship among mass, force, and acceleration is explained by ____.
Law of Conservation of Momentum
Newton's 1st Law of Motion
Newton's 2nd Law of Motion
Newton's 3rd Law of Motion
According to Newton’s 2nd law, for any object, the greater the force that's applied to it, the greater its ____ .
acceleration
inertia
gravity
size
The size of the gravitational force between two objects depends on their ____.
frictional forces
inertia
masses and the distance between them
speed and direction
"To every action there is an equal and opposite reaction" describes which law?
Law of Conservation of Momentum
Newton's 1st Law of Motion
Newton's 2nd Law of Motion
Newton's 3rd Law of Motion
Calculate the force on an object that has a mass of 10 kg and an acceleration of 4 m/s2.
40 N
8 N
2.5 N
0.4 N
A 500 N force is applied to a 25 m/s2 object. The mass of the object is ____.
12,500 m/s
12,500 kg
20 m/s
20 kg
The ____ of an object does not change, but its _____ can, based on its location.
mass, volume
mass, weight
weight, mass
weight, volume
When two forces on the same object are equal and opposite, these forces are called _____ forces.
net
balanced
unbalanced
frictional
What is the acceleration of the box in the picture? (ignore any frictional forces)
7,500 m/s2
300 m/s2
25 m/s2
12 m/s2
What is the weight of the box in the picture?
25 kg
25 N
245 kg
245 N
As the mass of an object increases, its inertia will ________.
decrease
increase
stay the same
be unable to determine
Which two quantities are measured in the same units?
velocity and acceleration
weight and force
mass and weight
force and mass
Ignoring air resistance, if a rock and a feather were dropped at the same time which of the following statements would be true?
The rock falls slower than the feather.
The rock falls faster than the feather.
The rock and feather fall at the same rate.
The rock and feather remain suspended and do not fall.
A man weighing 800 N is standing on a chair. In order to support the man, what force is the chair exerting?
less than 800 N
greater than 800 N
800 N up
800 N down
What is the net force on the block?
8 N right
8 N left
2 N left
2 N right
If the block in the picture has an acceleration of 1 m/s2, what would be the block’s mass?
8 kg
2 kg
0.5 kg
0.135 kg
Which of the following best describes how a swimmer moves through the water?
The swimmer pushes backwards on the water and the water pushes with an equal but opposite force back on the swimmer.
The swimmer pushes himself forward through the water.
The swimmer uses friction to push himself through the water.
Air resistance limits the swimmer’s speed.
The ____ energy of an object increases with its height.
chemical potential
kinetic
thermal
gravitational potential
An object that has kinetic energy must be........
lifted above Earth’s surface
in motion
at rest
changing direction
The law of ____ states that energy in a system can change forms but can never be created or destroyed.
conservation of energy
conservation of mass
conversion of energy
construction of energy
The kinetic energy of an object increases as its ____________ increases.
height
velocity
volume
potential energy
How much force is required to lift a rock a vertical distance of 8 m if 80 J of work were done?
80 J
80 N
10 J
10 N
Heat always flows from ____________ temperature to _____________ temperature.
higher, lower
lower, higher
higher, highest
lower, least
Energy stored in food would be considered:
chemical potential energy
kinetic energy
thermal energy
gravitational potential energy
Conduction is the transfer of heat energy by______
direct particle contact
electromagnetic waves
density differences
movement through a vacuum
Green plants convert light energy from the sun into ____ during photosynthesis.
gravitational potential energy
chemical potential energy
thermal energy
mechanical energy
The mechanical energy of an ideal pendulum _________________.
doesn't exist
increases
decreases
remains constant
The rate at which work is done is _____________.
power
force
efficency
momentum
The ______________ energy of an object depends on both the height and the mass of an object.
radiant
kinetic
chemical
gravitational potential
Temperature measures the average ______________ of the particles in a object.
chemical energy
kinetic energy
potential energy
mechanical energy
In the diagram, a roller coaster car starts from rest and moves along the track. At which point does the roller coaster car have the greatest potential energy?
Point A
Point B
Point C
Point D
Thermal energy is transferred to the solar panel in picture B by
Convection
Conduction
Friction
Radiation
Which picture shows thermal energy transfer by convection?
Picture A
Picture B
Picture C
Picture D
Which two pictures illustrate heat transfer by conduction?
A and C
A and D
C and D
They all show different types of transfer
When an object is dropped what happens to potential and kinetic energy as it falls?
GPE goes up, KE goes down
GPE goes up, KE goes up
GPE goes down, KE goes down
GPE goes down, KE does up
Which ball in the picture below has the greatest potential energy?
Ball A
Ball B
Ball C
Ball D
Machines make work ________________.
safer
harder
easier
slower
Which of the following is NOT one of the things that simple machines do:
increase force
increase distance
change directions
increase work
The force or push that causes electric charges to move is called ____________.
resistance
voltage
current
static electricity
Electrons flow from ___________ to _____________.
positive, negative
negative, positive
positive, neutral
neutral, negative
A material through which electrons do NOT flow easily is a(n) .
insulator
fuse
conductor
circuit breaker
Which of the following could be used as an insulator?
plastic stick
silver spoon
copper wire
gold necklace
What is the current produced by a 9-volt battery flowing through a resistance of 200 ohms?
1800 amps
0.045 amps
0.022 amps
8.8 amps
A length of silver has a resistance of 0.0198 ohms. What voltage would produce a current of 100 amps?
1.98 V
0.000198 V
5,050 V
100.0198 V
This contains a piece of metal that melts if the current is too high in order to open a circuit.
conductor
insulator
fuse
circuit breaker
What is the current of the circuit in the picture?
60 J
0 amps
0.6 amps
0.6 Watts
What subatomic Particle has a negative charge?
proton
neutron
electron
photon
What subatomic Particle has a positve charge?
proton
neutron
electron
photon
The flow of electrons in a circuit is called:
voltage
resistance
current
inductance
Which statement is true about the image?
circuit A is a series circuit, circuit B is parallel
circuit B is a series circuit, circuit A is parallel
Both circuit A and B are series
Both circuit A and B are parallel
Opposite charges _________. Like charges _____________.
flow, don't flow
repel, attract
attract, repel
are open, are closed
A voltage of 20V is placed across a resistor R. Which value of R would produce the greatest current?
10 ohms
20 ohms
30 ohms
5 ohms
The transfer of electrical charges through direct contact is called:
conduction
induction
friction
convection
Causing charges to move over a distance without direct contact is called:
conduction
induction
friction
convection
Rubbing a balloon on the whiteboard to create static electricity is an example of the transfer of electrical charges by:
conduction
induction
friction
convection
Which of the following is an example of static discharge?
lightning
grounding rod
fuse
circuit breaker
