
GCSE Physics - Power and Work Done #7
Interactive Video
•
Physics
•
9th - 10th Grade
•
Practice Problem
•
Easy
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Used 3+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the two definitions of power discussed in the video?
Power is the rate of energy transfer and the rate of work done.
Power is the force applied and the time taken.
Power is the amount of energy stored and the amount of work done.
Power is the speed of an object and the distance it travels.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the context of the video, what is 'work done'?
The energy stored in a battery.
The energy transferred when a force moves an object over a distance.
The energy lost due to friction.
The energy required to heat an object.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you determine which lamp is more powerful based on the video?
By comparing the energy transferred over time for each lamp.
By comparing the color of the lamps.
By comparing the brightness of the lamps.
By comparing the size of the lamps.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a microwave operates at 1,100 watts for 3 minutes, how much energy is transferred?
198,000 joules
198 joules
19,800 joules
1,980 joules
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the power used when 9 kilojoules of work is done in 20 seconds?
450 watts
225 watts
900 watts
600 watts
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