Font size
WorksheetsExam Practice Test
Total questions: 63
Worksheet time: 55mins
The item that should be plotted on the x-axis of a line graph for this experiment would be:
Independent variable
dependant variable
constant
control
Which of the following is a dependent variable in an experiment?
The variable that is measured
The variable that is changed
The variable that is kept constant
The variable that is controlled
In a scientific experiment, what is the purpose of a control group?
To serve as a standard for comparison
To introduce a new variable
To change the outcome of the experiment
To measure the dependent variable
Which of the following best describes an independent variable?
The variable that is manipulated
The variable that is measured
The variable that is kept constant
The variable that is controlled
Convert 556 cm to meters:
Convert 5 kilometers to meters.
500 m
5000 m
50 m
0.5 m
A set of data are all close in value to each other, but they are not close to the actual value. This set of data can be described as _________________.
precise
accurate
.000457
What happens to the electrical force as two electrically charged objects are brought closer together?
A circuit has a current flow of 2 Amperes running through a 6 Ohm resistor. What is the voltage produced by the battery? (V = I x R)
12 Volts
3 Volts
18 Volts
4 Volts
If the light bulb in the middle burned out, what would happen to the other two?
The light bulb to the left would stay lit, but the one to the right would turn off.
They would both stay lit.
The light bulb to the right would stay lit, but the one to the left would turn off.
They would both turn off.
Choose all ways an object can accelerate.
speed up
slow down
change direction
stay at a constant speed and never change direction
Billy runs 400 meters to Andy's house, turns around, and runs 400 meters back home. What is Billy's displacement?
0 meters
400 meters
800 meters
1600 meters
From the figure, what is the displacement?
20 meters
25 meters
15 meters
25 meters NE
Which of the following is correct?
Initial Position = -5 m
Final Position = -5 m
Distance = 22 m
Displacement = 0 m
Initial Position = -5 m
Final Position = -5 m
Distance = 0 m
Displacement = 22 m
Initial Position = -5 m
Final Position = 6 m
Distance = 22 m
Displacement = 0 m
Initial Position = -5 m
Final Position = 6 m
Distance = 0 m
Displacement = 22 m
What does the slope of a velocity vs. time graph tell you?
Speed
Displacement
Acceleration
Time
What does the slope of a distance vs. time graph tell you?
Speed
Acceleration
Time
Distance
A push or a pull is called a
Gravity
Force
Force=Mass x Acceleration
Newton's First Law
Newton's Second Law
Newton's Third Law
What type of waves do not require matter to carry energy?
electromagnetic
mechanical
compressional
transverse
When a light wave passes at an angle from the air into a glass block, it bends. What is the fundamental cause of this bending behavior, known as refraction?
The wave reflects off the surface of the glass.
The wave runs out of energy and stops completely.
The frequency of the wave increases as it enters a new medium.
The speed of the wave changes as it moves from one medium to another
The electric force between two charges depends on __.
Static electricity deals with objects that have become charged. Which particle moves from one object to another during the charging process?
A towel is rubbed on a balloon. As this happens, electrons are taken away from the balloon and are deposited onto the towel. What charge does the balloon have?
What is the net force?
25 N
10 N down
5 N up
10 N up
Using Newton's Second Law, explain why a heavy bowling ball accelerates much less than a lightweight golf ball when struck with the exact same amount of force.
A heavy bowling ball accelerates less than a lightweight golf ball because acceleration is inversely proportional to mass
A heavy bowling ball accelerates faster than a lightweight golf ball because it is denser.
Both balls accelerate equally since they are struck with the same force regardless of mass.
A lightweight golf ball accelerates more than a heavy bowling ball due to its lower mass.
Which car had the lowest acceleration?
Why are high-frequency electromagnetic waves, such as X-rays and gamma rays, hazardous to human health, while low-frequency waves like radio waves are safe?
What are some advantages of digital signals over analog signals over a long distance?
Angle of Reflection
A.
B.
C.
D.
E.
Incident Ray
A.
B.
C.
D.
E.
When do circuit breakers automatically turn off?
When the devices are not working properly
When the wires are broken
When the energy source is disconnected
When there is too much energy flowing through the wires
A student wants to know how the steepness of a hill affects a skateboarder's final velocity at the bottom.
The student has a volunteer ride the exact same skateboard down three different hills with angles of 10°, 20°, and 30°. The rider starts from a complete standstill each time without pushing off. The student uses a radar gun to record the rider's top velocity right as they hit the flat ground.
The final velocity of the skateboarder is the:
Independent Variable
Dependent Variable
Constant
Control
A student wants to know how the steepness of a hill affects a skateboarder's final velocity at the bottom.
The student has a volunteer ride the exact same skateboard down three different hills with angles of 10°, 20°, and 30°. The rider starts from a complete standstill each time without pushing off. The student uses a radar gun to record the rider's top velocity right as they hit the flat ground.
Using the exact same skateboard and rider for every trial is a:
Independent Variable
Dependent Variable
Constant
Control
A large hydroelectric dam holds back millions of gallons of water in a high reservoir. When the floodgates are opened, gravity pulls the water down through large pipes inside the dam. As the rushing water flows downward, it strikes the blades of a massive turbine, causing it to spin rapidly. This spinning turbine rotates a large shaft connected to a magnet inside copper coils, which generates electricity for the nearby city.
According to the scenario, which of the following correctly describes the sequence of energy transformations that takes place to generate electricity?
Chemical Energy to Thermal Energy to Electrical Energy
Electrical Energy to Mechanical Energy
Mechanical Energy to Electrical Energy
Thermal Energy to Electromagnetic Energy to Sound Energy
A musician plays a note on a flute, creating a sound wave that travels through the warm air inside the concert hall. Because the temperature of the room is constant, the speed of the sound wave stays exactly the same. The musician then blows into the flute differently, causing the frequency of the sound wave to triple (3 X)
Based on the scenario above, what must happen to the wavelength ($\lambda$) of the sound wave when the frequency triples while the wave speed remains constant? V =λ x f
The wavelength increases to 3 times its original value.
What is the Law of Conservation of Charge?
Electric charge can't be created or destroyed only tranferred
