Please answer worth 100 point n what direction does an applied force move an object?
Which of...
Please answer worth 100 point n what direction does an applied force move an object?
Which of the following is not an example of work?
Watt, which is a unit of power, is equal to.
A joule, which is a unit of work, is equal to.
Which simple machines make up scissors?
Unit 2
When a driver touches a car's steering wheel on a hot day, heat is transferred to the driver's hands by .
Sun warms the earth by.
How can you tell if two objects are in thermal equilibrium?
What happens when the temperature of an object increases?
What happens when the temperature of an object decreases?
Unit 3
Which type of wave has a wave perpendicular to the disturbance?
Which of these waves cannot travel in a vacuum?
Which is true of a mechanical wave?
The Doppler effect is used at baseball games to measure.
The Doppler effect is used in hospitals to.
Unit 4
Which color is absorbed, and which is reflected by the leaves of most plants?
Which part of the electromagnetic spectrum is divided into seven ranges of wavelengths and is the part visible to the human eye?
Most objects emit infrared energy. How do humans recognize this?
Exposure to what type of radiant energy is sensed by human skin as warmth?
Reflexio is the Latin root for which word?
Unit 5
Can two negatively charged balloons move apart without ever touching? Why or why not?
What causes an electric current in a wire?
Why does a light go out when you turn off the wall switch?
Why does the light bulb in a circuit turn on when you close the switch?
A bar magnet is dipolar. This means is has ___ poles.
Answers: 3
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