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Grade 8: Physics Term 1-2 > Measurement > Flashcards

Measurement Flashcards

1
Q

What does SI stand for?

A

International System of Units.

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2
Q

What SI unit is for time?

A

Seconds (s)

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3
Q

What SI unit is for mass?

A

Kilogram (kg)

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4
Q

What SI unit is for atoms?

A

mol

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5
Q

What SI unit is for the strength of light?

A

Candela (cd)

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6
Q

What SI unit is for temperature?

A

Kelvin (K)

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7
Q

What SI unit is for the strength of an electric current?

A

Amperes (A)

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8
Q

What SI unit is for distance?

A

Metres (m)

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9
Q

What SI unit is for area?

A

square metre

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10
Q

What SI unit is for volume?

A

cubic metre

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11
Q

What SI unit is for force?

A

Newtons (N)

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12
Q

What SI unit is for speed and velocity?

A

metres per second (m/s)

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13
Q

What SI unit is for acceleration?

A

meters per second squared

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14
Q

What SI unit is for density?

A

kilogram per cubic metre

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15
Q

What SI unit is for electric charge?

A

Coulomb (C)

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16
Q

Name the 8 SI prefixes, their symbols and what they mean.

A
  1. giga (G) = billion
  2. mega (M) = million
  3. kilo (k) = thousand
  4. deci (d) = tenth
  5. centi (c) = hundredth
  6. milli (m) = thousandth
  7. micro (u) = millionth
  8. nano (n) = billionth
17
Q

How many mm in 1 cm?

A

10.

18
Q

How many cm in 1m?

A

100.

19
Q

How many m in 1km?

A

1 000.

20
Q

How many mm in 1m?

A

1 000.

21
Q

How many cm in 1km?

A

100 000.

22
Q

How many mm in 1km?

A

1 000 000.

23
Q

How many mg in 1g?

A

1 000.

24
Q

How many g in 1kg?

A

1 000.

25
Q

How many kg in 1 ton?

A

1 000.

26
Q

How many mg in 1 ton?

A

1 000 000 000.

27
Q

How many s in 1 min?

A

60.

28
Q

How many min in 1 hr?

A

60.

29
Q

How many hrs in 1 day?

A

24.

30
Q

How many days in 1 yr?

A

365.

31
Q

What is the error of parallax?

A

The error of parallax occurs when your line of sight to the instrument is not accurate.

To avoid the error of parallax, make sure that your eye is directly in line with the mark of the scale that you want to measure.

32
Q

What is meniscus?

A

The flat part of the liquid level, ignoring the curved edges.

Grade 8: Physics Term 1-2 (8 decks)

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