Technology: Engineering & Design

Chapter 8: Energy & Power Fundamentals

Self-Check Quizzes

1
Power measures work done in a specific
A)place.
B)machine.
C)system of measurement.
D)period of time.
2
Force applied through turning or twisting motion is termed
A)torque.
B)pressure.
C)potential energy.
D)weight.
3
Ohm's law relates the following three quantities: resistance, amperage, and
A)elasticity.
B)torque.
C)coulombs.
D)voltage.
4
Energy is the capacity to
A)burn substances.
B)do work.
C)dislodge electrons from atoms.
D)heat up the atmosphere.
5
The distinctive part of a hydraulic machine is the
A)fluid that transmits power.
B)power source.
C)attachment.
D)operator of the device.
6
The greenhouse effect describes
A)the hot outer layer of Earth's atmosphere.
B)the trapping of heat in Earth's atmosphere by carbon dioxide.
C)the loss of efficiency due to conversion of input energy to heat.
D)the heating of a solid surface by radiant energy.
7
The radius of the circle through which force moves is a necessary piece of data for measuring
A)pressure.
B)torque.
C)work.
D)energy.
8
The joule is the metric unit of measurement for
A)power.
B)electrical energy.
C)gravity.
D)heat energy.
9
The kind of energy in a battery is
A)kinetic energy.
B)nuclear energy.
C)potential energy.
D)thermal energy.
10
An object moves in the direction of the force that has been applied to it; this scenario describes
A)pressure.
B)work.
C)efficiency.
D)power.
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