The unit, defined as one joule per second, measures the rate of energy conversion or transfer.

The rate at which energy is generated or consumed and hence is measured in units

the rate at which work is done when an object's velocity is held constant at one meter per second against constant opposing force of one newton.

Which of these is not one of Maxwell's stipulations for the definition of heat?

Heat refers to a process of transfer of energy between a system and its surroundings other than by work or transfer of matter.

It is something which may be transferred from one body to another, according to the second law of thermodynamics.

It is a measurable quantity, and thus treated mathematically

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Energy, Power and Heat

PatrickNoonan 10 questions 2,308 views

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11 gigawatt is equal to how many watts?
1. AMillion watts
2. BBillion watts
3. CTrilion watts
2Define Watt:
1. AThe unit, defined as one joule per second, measures the rate of energy conversion or transfer.
2. BThe rate at which energy is generated or consumed and hence is measured in units
3. Cthe rate at which work is done when an object's velocity is held constant at one meter per second against constant opposing force of one newton.
3Which of these doesn't impact on the resistance of a material?
1. ALength
2. BCross-sectional area
3. CResisitivty
4. DAngle
41 W = ? J/s
1. A1 J/s
2. B10 J/s
3. C100 J/s
51 W = 1J/s
1. ATrue
2. BFalse
6Batteries produce...?
1. AAC
2. BDC
3. CAC/DC
7If R= p/I^2 then what is the resistance of a 12 watts on a 3 watt current?
1. A1.33' ohm
2. B2.33' ohm
3. C.33' ohm
8According to Ohms law, I= V/c
1. ATrue
2. BFalse
9What is heat measured in?
1. AJoules
2. BDegrees
3. CGigawatts
10Which of these is not one of Maxwell's stipulations for the definition of heat?
1. AIt is something which may be transferred from one body to another, according to the second law of thermodynamics.
2. BIt is a measurable quantity, and thus treated mathematically
3. CHeat refers to a process of transfer of energy between a system and its surroundings other than by work or transfer of matter.

Description: Prepare for your Physics exams by testing your knowledge of Energy, Power and Heat.
Author: PatrickNoonan
Language: English
Views: 2,308
Tags: physics science physical science science leaving certificate
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