Physics

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​Twenty milliseconds is 0.020 s.

True

A fast-moving body must have a larger acceleration than a slow-moving body.

F

The velocity of the moving object is a non-zero constant

F

​An aircraft approaches a runway that runs directly east as a strong wind blows out of the south. The direction that the aircraft should aim in order to land is east of north.

F

​If an object's acceleration is positive, its speed must be increasing

F

​The object's velocity is never negative.

F

​The period of oscillation for a signal having a frequency of 60 Hz is 60 seconds

F

​The slope of a distance vs. time graph is the acceleration

F

​The velocity of the moving object is a non-zero constant.

F

Motion in a circle at constant speed is motion with constant velocity

False

The metric prefix that means one thousand is milli-.

False

The object's velocity is positive in region II.

False

The proper abbreviation for 'seconds' is 'sec.'

False

Uniform motion is any motion at constant speed.

False

​A vector quantity has only a magnitude and no direction associated with it.

False

​Motion in a circle at constant speed is motion with constant acceleration

False

​The number of cycles of a periodic process that occur per unit time is called the period.

False

​The terms velocity and speed have identical meanings in physics.

False

A body at the end of a spring oscillates up and down ten times in five seconds. The period of oscillation is 2 s.

T

Experimenting is part of the scientific method.

T

The acceleration of the moving object is a non-zero constant.

T

The object's velocity is zero in region II.

T

The slope of a velocity vs. time graph is the acceleration

T

​An object moving in a circle undergoes centripetal acceleration

T

​The maximum possible speed in nature is the speed of light.

T

​The second is a metric unit of measure.

T

​The time for one complete cycle of a periodic process to take place is called the period.

T

​The velocity of the moving object is a non-zero constant.

T

Speed can sometimes be negative.

True

​If an object's speed is constant, its velocity must also be constant.

True

​If an object's velocity is constant, its speed must also be constant.

True

​The proper abbreviation for 'grams' is 'g.'

True

​The proper abbreviation for 'kilohertz' is 'kHz.'

True

​There are one thousand megabytes in a gigabyte

True


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