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End Of The Year Benchmark Review
Test Description: End of the Year Benchmark Practice
Instructions: Answer all questions to get your test result.
1) Which of the following occurs in an electromagnet?
A
An electric current is used to generate a magnetic field
B
Mechanical energy is converted inot electrical energy
C
A magnetic field is used to generate an electric current
D
Electrical energy is converted into mechanical energy
2) Why is the amount of energy that comes out of a machine always less than the amount of energy that goes into the machine?
A
At least some energy is turned to heat
B
At least some energy evaporates
C
At least some energy is stored as potential energy
D
At least some of the energy is destroyed
3) Why do you see a banana as yellow?
A
The banana absorbs wavelengths for most colors of light, while reflecting yellow light?
B
The banana absorbs only yellow wavelengths of light, & the colors of all others are transmitted.
C
The banana does not absorb wavelengths for any color of light.
D
The banana absorbs wavelengths for yellow light, reflects wavelenghts for other colors of light.
4) Which of these waves requires a medium?
A
ultraviolet wave
B
infrared wave
C
light wave
D
sound wave
5) What do you calculate when you divide distance by time?
A
acceleration
B
speed
C
position
D
direction
6) A roller coaster car has the LEAST kinectic energy when it is
A
at the top of a hill
B
just reaching the bottom of a hill
C
three-quarters of the way down the hill
D
halfway down a hill
7) Part of a chemical reaction is shown as CaO + CO . How many oxygen (O) atoms must be present in a product that forms from the reaction?
A
1
B
4
C
3
D
2
8) What state of matter has a definite shape and volume?
A
plasma
B
solid
C
gas
D
liquid
9) Which of these is an example of velocity?
A
50 km/h east
B
80 s/m
C
20 m/s west
D
16 m/s
10) What is combustibility?
A
the ability to conduct heat
B
the ability to react with acids
C
the ability to burn
D
the ability to dissolve in water.
*select an answer for all questions
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