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GCSE Combined Physics (Edexcel) > Topic 1 - Key Concepts in Physics COMPLETE PK > Flashcards

Topic 1 - Key Concepts in Physics COMPLETE PK Flashcards

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1
Q

What are SI units?

A

The units that scientists use all over the world.

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2
Q

What is the SI unit for length?

A

Metre (m)

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3
Q

What is the SI unit for mass?

A

Kilograms (kg)

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4
Q

What is the SI unit for time?

A

Second (s)

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5
Q

What is the SI unit for electrical current?

A

Ampere (A)

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6
Q

What is the SI unit for temperature?

A

Kelvin (K)

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7
Q

What is the SI unit for the amount of substance?

A

Mole (mol)

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8
Q

A physical quantity is something that can be ________

A

Measured

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9
Q

What are derived units?

A

Quantities scientists measure that come from base units

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10
Q

What are the units for frequency?

A

hertz

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11
Q

What is the abbreviation for hertz?

A

Hz

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12
Q

What are the units for force?

A

newtons

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13
Q

What is the abbreviation for newtons?

A

N

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14
Q

What are the units for energy?

A

joules

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15
Q

What is the abbreviation for joules?

A

J

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16
Q

What are the units for power?

A

watts

17
Q

What is the abbreviation for watts?

A

W

18
Q

What are the units for pressure?

A

pascals

19
Q

What is the abbreviation for pascals?

A

Pa

20
Q

What are the units for electric charge?

A

coulomb

21
Q

What is the abbreviation for coulombs?

A

C

22
Q

What are the units for electric potential difference?

A

volts

23
Q

What is the abbreviation for volts?

A

V

24
Q

What are the units for electrical resistance?

A

ohms

25
Q

What is the abbreviation for ohms?

A

Ω

26
Q

What are the units for magnetic flux density?

A

tesla

27
Q

What is the abbreviation for tesla?

A

T

28
Q

What is 4,400,000,000,000 in standard form?

A

4.4 × 1012

29
Q

1000m = ?km

A

1

30
Q

What is the prefix for the multiple size 1,000,000,000,000?

A

tera-

31
Q

What is the prefix for the multiple size 1,000,000,000?

A

giga-

32
Q

What is the prefix for the multiple size 1,000,000?

A

mega-

33
Q

What is the prefix for the multiple size 1,000?

A

kilo-

34
Q

What is the prefix for the multiple size 0.01?

A

centi-

35
Q

What is the prefix for the multiple size 0.001?

A

milli-

36
Q

What is the prefix for the multiple size 0.000001?

A

micro-

37
Q

What is the prefix for the multiple size 0.000000001?

A

nano-

38
Q

What are significant figures?

A

Giving a number to a specified number of significant figures is a method of rounding. For example, in the number 7483, the most significant, or important, figure is 7, as its value is 7000. To give 7483 correct to one significant figure (1 sf), would be 7000. To 2 sf, it would be 7500

GCSE Combined Physics (Edexcel) (10 decks)

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