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WorksheetsUnits 7-9 Cumulative Review
Total questions: 25
Worksheet time: 14mins
________ is the measure of the average kinetic energy of the particles in an object.
Radiant energy
Mechanical energy
Temperature
Thermal Energy
Which of the following is an insulator?
Air
Aluminum
Copper
Gold
Which of the following is NOT an example of chemical potential energy?
Gasoline
Uranium fuel rods
Food
Batteries
Swinging a bat, riding a bike, and running are all examples of ___.
Chemical Energy
Thermal energy
Potential Energy
Mechanical energy
Which type of heat transfer is shown by the images?
Radiation
Convection
Thermal
Conduction
How much heat energy is required to raise the temperature of 12g of copper (c =0.385 J/g°C) by 40°C?
184.8 J
0.0008 J
1,246.8 J
52.4 J
Which of the following is TRUE about conduction?
It does not require contact
It occurs in fluids (liquids and gases)
It doesn't require matter to transfer
It occurs in solids
What is the identity of a 10g substance that requires 51,200 J of energy to change its temperature by 40°C?
Lead (128 J/kg°C)
Iron (452 J/kg°C)
Aluminum (900 J/kg°C)
Silver (235 J/kg°C)
When water boils, the hotter, less dense H2O molecules move up to the surface and cooler, more dense molecules sink down to the bottom of the pot. What type of heat transfer is this?
Conduction
Convection
Radiation
Thermal
What makes mechanical waves different from electromagnetic waves?
Mechanical waves require a medium
Electromagnetic waves are transverse
Mechanical waves travel at the speed of light
Mechanical waves can travel in a vacuum
The 7 types of EM waves are arranged from longest to shortest ____.
Amplitude
Frequency
Wavelength
Energy
When fishing, you don't see the true location of the fish due to ____ when you look into the water.
Reflection
Refraction
Diffraction
Interference
Due to the Doppler Effect, who will hear the highest amplitude and highest pitched sound from the ambulance?
The driver
The observer the ambulance just passed
An observer that the ambulance is ABOUT TO pass.
The Doppler Effect doesn't occur in this situation
Which of the following represents diffraction of a wave?
According to the law of reflection, if a light ray strikes a mirror at 28° from the normal, at what angle will it be reflected?
28°
118°
62°
152°
Why does sound travel faster in steel than brick?
Steel is denser, so the particles are closer together
Brick is denser, so the particles are farther apart together
Steel is denser, so the particles transfer vibrations slower
Brick is denser, so the particles transfer vibrations faster
All waves require ____.
Matter
Energy
Water
Mass
Which of the following shows the constructive interference that happens when the crest of one wave overlaps the crest of another wave?
Your mom just got back from a parent-teacher conference. You are spying on the other side of the wall. You can't see your mom, but you can hear her. Why?
Diffraction
Refraction
Reflection
Absorption
Why doesn't the Doppler Effect occur when you honk at the car in front of you on the interstate? (road rage is bad)
Both the observer (you) and the source (horn) are moving
Only you are moving
Only the horn is moving
You need to press the horn longer.
In a series circuit with a 6V battery and 1 bulb, what will happen if you add one more bulb?
Both bulbs will be dimmer
The whole circuit will stop working
Both bulbs will have the same brightness as before
The battery will die faster.
On a hot day, which substance will stay cool longest?
Lead
Iron
Aluminum
Silver
Which of the following describes a generator?
It converts motion into electricity
It converts electricity into motion
An example would be an electric fan
An example would be a battery powered flashlight
The circuit wired in your bedroom runs your light, phone charger, ceiling fan, and TV. The circuit in your room is ___.
AC wired in series
DC wired in series
AC wired in parallel
DC wired in parallel
Which of the following would make the electromagnet stronger?
Adding more coils of wire
Using thinner wire
Using an aluminum nail instead
Removing one of the batteries
