题目内容

The unit of mass is the:

A. Joule
B. Watt
C. Newton
D. Kilogram

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The unit of force is the:

A. Mass-kilogram
B. Newton-metre
C. Joule
D. Newton

The unit of weight is the:

A. Kilogram
B. Newton
C. Watt
D. Kilowatt

Weight is the result of:

A. The force on mass due to gravity
B. The action of a falling mass
C. How much matter the object contains
D. The rate of mass per unit area

If a force is applied to a mass and the mass does not move:

A. Work is done even though there is no movement of the mass
B. Work is done only if the mass moves a long way
C. Power is exerted, but no work is done
D. No work is done

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