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Cat B- Mod 2 Physics > 2.0 Introduction > Flashcards

2.0 Introduction Flashcards

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1
Q

What is the definition of Physics?

A

The study of what happens in the world involving matter and energy.

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2
Q

What is the definition of Matter?

A

Matter is what things or objects are made of.

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3
Q

What three states of matter are there?

A

Solid, liquid and gas.

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4
Q

What is the definition of Energy?

A

It is what causes things to happen and is the ability to do work.

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5
Q

What is an SI unit?

A

International standard unit.

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6
Q

What is the SI unit for mass?

A

Kg

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7
Q

What is the SI unit for weight/force?

A

Newton

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8
Q

What is the SI unit for volume?

A

Litre

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9
Q

What is the SI unit for distance?

A

metre/km

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10
Q

What is the SI unit for moment/torque?

A

NM

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11
Q

What is the SI unit for energy/work/heat?

A

Joules and calorie

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12
Q

What is the SI unit for power?

A

Watts

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13
Q

What is the SI unit for temperature?

A

Degrees Celsius and Kelvin

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14
Q

What is the SI unit for pressure?

A

N/m², hectopascal and millibar

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15
Q

What is the SI unit for density?

A

kg/m³

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16
Q

What is the SI unit for speed?

A

m/s and kmph

17
Q

What is the SI unit for acceleration?

A

m/s²

18
Q

What is the conversion for mass (lb to kg)?

A

1lb = 0.453kg

19
Q

What is the conversion for weight/force (kg to N)?

A

1kg = 9.81N

20
Q

What is the conversion for volume (gal to litres and gal to us gal)?

A

1 Gal = 4.546 Litres
1 gal = 1.2 us gal

21
Q

What is the conversion for distance (ft to metres and Nm to Km)?

A

1ft = 0.3048m
1Nm = 1.852 Km

22
Q

What is the conversion for energy/work/heat (BTU to J and Cal to J)?

A

1 BTU = 1055J
1 cal = 4.2 J

23
Q

What is a BTU?

A

British Thermal Unit- unit of heat, defined by amount of energy required to heat 1lb of water by 1 fahrenheit.

24
Q

What is the conversion for temperature (°c to °f)?

A

1 Celsius = 5/9 -32 fahrenheit

25
Q

What is the conversion for pressure (bar to psi)?

A

1 bar = 14.5 psi

Cat B- Mod 2 Physics (9 decks)

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