Ch 64 Flashcards by Mara T

Q

What is the SI unit for length?

A

m

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Q

What is the SI unit for mass?

A

kg

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Q

What is the SI unit for force?

A

N

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Q

What is the SI unit for time?

A

s

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Q

What is the SI unit for Work and Energy?

A

J

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Q

What is the SI unit for power?

A

W

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Q

What is the prefix for E9

A

G

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Q

What is the prefix for E6

A

M

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Q

What is the prefix for E3

A

K

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Q

What is the prefix for E-2

A

c

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Q

What is the prefix for E-3

A

m

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Q

What is the prefix for E-6

A

µ

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Q

What is the prefix for E-9

A

n

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Q

What is the prefix for E-12

A

p

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Q

What is the sin of 0˚?

A

0

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Q

What is the cos of 0˚?

A

1

Q

What is the sin of 30˚?

A

1/2

Q

What is the cos of 30˚?

A

√3 / 2

Q

What is the sin of 45˚?

A

√2 / 2

Q

What is the cos of 45˚?

A

√2 / 2

Q

What is the sin of 60˚?

A

√3 / 2

Q

What is the cos of 60˚?

A

1/2

Q

What is the sin of 90˚?

A

1

Q

What is the cos of 90˚?

A

0

Q

What is the sin of 180˚?

A

0

Q

What is the cos of 180˚?

A

-1

Q

What are scalar quantities?

A

Numerical quantities with no direction

Q

The sum of two or more vectors is called the

A

Resultant of the vectors

Q

How do you find Vector X?

A

V*cosΘ

Q

How do you find Vector Y?

A

V*sinΘ

Q

What kind of quantity is displacement?

A

Vector

Q

Velocity has the same direction as

A

∆x

Q

What is the equation of average velocity?

A

∆x / ∆t

Q

Instantaneous velocity is defined as the slope of

A

Position with respect time at a particular t

Q

What is the equation of average speed?

A

d / ∆t

Q

What is the equation of average acceleration?

A

∆v / ∆t