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WorksheetsPhysical Science Midterm Test Review
Total questions: 50
Worksheet time: 42mins
The Olympian swam 200 meters in 20 seconds. What is this measuring?
Select the equation for acceleration.
The slope of this position vs time graph is...
Constant
Increasing
Decreasing
0
Charlie
If Greg applies a force of 100 N to move a box 4 meters, how much work did he do?
400 J
25 J
0.04 J
104 J
How does an inclined plane make lifting a heavy object easier?
The object is moved over a shorter distance.
The ramp increases the amount of work done.
Less force is needed to move the object over a longer distance.
More force is needed to move the object over a longer distance.
How much work does the person do as he pushes the barrel up the ramp with a force of 200 N in the picture above?
2400 J
1600 J
300 J
No work is done.
An inventor claims to have built a machine that can produce 120 J of work with an input of 110 J. What should you think about this claim?
It is possible because machines can multiply the work.
It is possible because the machine’s efficiency is less than 100%.
It is possible because all machines create energy when they are used.
It is impossible because a machine’s efficiency cannot exceed 100%.
What is the mechanical advantage of the pulley system above?
1000
62.5
5
4
Which lever above has the greatest mechanical advantage?
Lever A
Lever B
Lever C
All of the levers have the exact same mechanical advantage.
Which sequence of energy transformations occurs after a battery-operated flashlight is turned on?
electrical → light → chemical
electrical → chemical → light
chemical → light → electrical
chemical → electrical → light
A student wanted to test the thermal conductivity of various metals using wax, a Bunsen burner, and the apparatus as shown in the diagram above. Based upon the results shown, which metal conducts thermal energy the best?
aluminum
nickel
iron
copper
Which example best demonstrates the process of conduction?
A piece of paper is torn in half
Heated air rises above a lit candle
A metal spoon gets warm when used to stir hot soup
Sunlight shining through a window
Which of the following statements best explains how heat flows by convection?
A large mass of warm air becomes less dense, allowing to rise above cooler air
Energy is transferred by electromagnetic waves
Energy is transferred by from molecule to molecule by contact
A large volume of water is heated
The picture above represents the same type of liquid with different amounts in each container. All of the liquids are at the same temperature of 20 °C. Which container has the lowest thermal energy?
Container A
Container B
Container C
All containers have the same thermal energy
As you heat air what happens to the particles?
The particles get bigger and the warm air rises
The particles spread out and the warm air rises
The particles shrink and the warm air falls
The particles get closer together and the warm air falls
A cup of tea with a temperature of 80°C is placed on a table in a 20°C room. What happens to the thermal energy and molecular motion of the tea when it is left to cool on the table?
The thermal energy increases and the molecules move faster
The thermal energy decreases and the molecules move faster
The thermal energy increases and the molecules move more slowly
The thermal energy decreases and the molecules move more slowly
A student places a very cold ice cube into a cup of hot coffee. Which of the following statements explains the flow of heat that happens in the cup?
Heat energy flows from the coffee to the ice cube
Heat energy flows from the ice cube to the coffee
The ice cube was originally the same temperature as the coffee
The coffee was originally at a lower temperature than the ice cube
The graphs above show waves W and X. Both waves were produced in the same medium and are moving at the same speed. Which of the following statements describes another property of these waves?
Wave W has a smaller amplitude than wave X
Wave W has a lower frequency than wave X
Wave W has a greater amplitude than wave X
Wave W has a shorter wavelength than wave X
A radio wave is sent from a television station to a satellite in orbit around the Earth. Why is the radio wave able to reach the satellite as it travels in the vacuum of space?
Radio waves are electromagnetic waves
Radio waves are longitudinal waves
Radio waves are mechanical waves
Radio waves are sound waves
Which statement describes the frequencies of light the human eye can detect?
The lowest frequency appears red, and the highest frequency appears violet.
The lowest frequency appears red, and the highest frequency appears yellow.
The lowest frequency appears green, and the highest frequency appears violet.
The lowest frequency appears green, and the highest frequency appears yellow.
When a student listens to music, sound waves propagate from the speaker to her ear. Which of the following is a physical description of this process?
Matter produced at the speaker travels to the student’s ear.
Energy is transported from the speaker to the student’s ear.
Material is transferred from the speaker to the student’s ear.
Clusters of air molecules are sent from the speaker to the student’s ear.
As electrons flow through a circuit, the voltage remains constant. What happens to the flow of electrons, or current, if the resistance increases?
The current decreases so the electrons would slow down
The current stays the same so the electron flow would stay constant
The current increases so the electrons would speed up
The current increases so more electrons would flow through the circuit
Three circuits each have the same exact components except for the battery. Circuit #1 has a 6 volt battery, Circuit #2 has a 9 volt battery. Circuit #3 has a 12 volt battery. Which of the following statements describes how voltage, current, and resistance are related by Ohm’s Law in these circuits?
As voltage increases, current decreases and resistance decreases.
As voltage increases, current increases and resistance stays the same.
As voltage increases, current decreases and resistance stays the same.
As voltage increases, current stays the same and resistance decreases.
In the diagram, which of the following bulbs will go out if the switch is opened?
Only Bulb A
Only Bulbs A and B
Only Bulbs B and C
All bulbs will go out.
The diagram above represents a circuit with 3 light bulbs. If the middle bulb burns out, what happens to the other bulbs?
The other 2 bulbs will keep working.
The first bulb will work but the last bulb will not work.
None of the bulbs will work.
Selena created an electromagnet in science lab. She picked up 10 paper clips with her electromagnet. What could she do to increase the strength of her electromagnet and pick up more paper clips?
Use fewer coils of wire.
Use a screw that is the same size as the nail.
Use a battery with more voltage to increase the current.
Replace the nail with a piece of copper.
What is an electric generator?
A magnet is rotated through a coil of wire to produce an electric current.
Electric potential in a rotating coil of wire creates a permanent magnet.
An electrical current causes a coil of wire to rotate in a magnetic field.
Forces from a permanent magnet allow a coil of wire to rotate.
Disabled Current
The buildup of electric charges is called . . .
static electricity
electric discharge
electric charge
Which circuit below would have the highest current?
A 12 volt battery connected to a 6-ohm resistor
A 18 volt battery connected to a 1-ohm resistor
A 12 volt battery connected to a 1-ohm resistor
A 18 volt battery connected to a 6-ohm resistor
If the current in an electrical circuit is constant, what will happen to the voltage if the resistance is increased?
The voltage will decrease.
The voltage will increase.
The voltage will stay the same.
The voltage first decreases, then increases.
Which circuit is wired in parallel?
Circuit A
Circuit B
Both
Neither
What are electrons?
The core of an atom
Microscopic magnets
Particles that carry electric charges
Units of magnetic force
A type of magnet that has temporary magnetic effect when electric current flows through it.
This refer to
Electric
Electronic
Electrostatic
Electromagnet
Which of the following properties makes a light wave different from all mechanical waves?
A light wave slows down in a vacuum
A light wave exists as a transverse wave
A light wave is able to transmit energy
A light wave can travel without a medium
What is the role of frequency in sound?
Frequency determines the texture of the sound.
Frequency determines the color of the sound.
Frequency determines the temperature of the sound.
Frequency determines the pitch of the sound.
How does amplitude affect the sound produced by a loudspeaker?
It affects the volume of the sound produced.
It affects the texture of the sound produced.
It affects the color of the sound produced.
It affects the taste of the sound produced.
What are sound waves?
Sound waves are vibrations that travel through the air or another medium and can be perceived by the human ear.
Sound waves are electromagnetic waves.
Sound waves are particles that travel through the air.
Sound waves are a form of light waves.
