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Energy GoFar

Authored by undefined Tomlinson

Other Sciences, Physics

8th - 9th Grade

Used 2+ times

Energy GoFar
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44 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following could be used to convert light energy to electrical energy? 

a windmill
a chemical storage battery
a solar cell
rotating coils in a magnetic field

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In order to raise a box 3 meters to the awaiting bed of a tractor-trailer, you push it up a 10 meter ramp. The box is filled with books and weighs (W) 200 Newtons. You use a force (F) of 75 N applied parallel to the ramp.
Determine the amount of work you do against gravity.

225 J
750 J
600 J
2000 J

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a restaurant kitchen, lamps are used to keep food warm. Which type of electromagnetic radiation do the lamps emit that is primarily responsible for keeping the food warm?

gamma
ultraviolet
infrared
visible

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Albert stirs a mug of hot chocolate with a metal spoon. What type of heat transfer is responsible for the spoon getting hot? 

conduction
convection
thermoelectric
radiation

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Many restaurants and kitchens use iron skillets to cook bacon, eggs, and biscuits for breakfast. A standard skillet has a mass of 850 g. When cooking bacon for breakfast the skillet starts at a temperature of 25 degrees Celsius. At the end of cooking, the temperature of the skillet reaches 120 degrees Celsius. The specific heat of iron is 0.45 J/(g°C).

Determine the heat energy gained by the iron skillet.

4.03 J 
382.5 J
36,377.5 J
179,444.4 J

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

An inclined plane is used to move a heavy box from the ground into the bed of a truck. If 100 N of force is required to move the load up the ramp, how much work is done?   Disregard any force of friction. 

100 J
300 J
400 J
500 J

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

All of the following have what in common?  
-A light wave emitted from a bulb.

  -A radio wave picked up by your car stereo.
  -An ocean wave carrying a surfer to the beach.
  -An earthquake (wave) leveling homes on the west coast.

They all transfer energy
They all have equal wavelength
They all travel at the same speed
They all need a medium to travel through

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