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JGHS - N5 Physics > Properties of Matter > Flashcards

Properties of Matter Flashcards

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1
Q

Which quantity is represented by the symbol F?

A

F = force

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2
Q

What does the prefix G stand for?

A

G stands for giga

giga = x 109

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3
Q

Describe how to convert a temperature in degrees celsius into kelvin.

A

To convert a temperature from degrees celsius into kelvin, add 273.

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4
Q

What does the prefix µ stand for?

A

µ stands for micro

micro = x 10-6

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5
Q

What unit is pressure measured in?

A

Pressure is measured in pascals (Pa).

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6
Q

Round off this number to 3 significant figures.

3.14159

A

3.14159 rounded off to 3 significant figures is

3.14

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7
Q

What is the definition of the term pressure?

A

Pressure is defined as the force per unit area.

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8
Q

Round off this number to 3 significant figures.

6.22789

A

6.22789 rounded off to 3 significant figures is

6.23

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9
Q

Which quantity is represented by the symbol c?

A

c = specific heat capacity

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10
Q

Round off this number to 3 significant figures.

1,526.33

A

1,526.33 rounded off to 3 significant figures is

1,530

(the ‘2’ has been rounded up to 3)

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11
Q

What does the prefix n stand for?

A

n stands for nano

nano = x 10-9

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12
Q

Round off this number to 3 significant figures.

0.0025668

A

0.0025668 rounded off to 3 significant figures is

0.00257

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13
Q

What unit is volume measured in?

A

Volume is measured in metres cubed (m3).

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14
Q

Which quantity is represented by the symbol Eh?

A

Eh = heat energy

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15
Q

Explain how a snowshoe works

(in terms of pressure, force and area).

A

A snowshow spreads a force over a larger area - this causes the pressure on the snow to decrease.

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16
Q

How many pencils are there?

A
17
Q

Which quantity is represented by the symbol m?

A

m = mass

18
Q

What unit is energy measured in?

A

Energy is measured in joules (J).

19
Q

What does the prefix k stand for?

A

k stands for kilo

kilo = x 103

20
Q

What unit is temperature measured in?

A

Temperature is measured in degrees celsius (°C).

Temperature can also be measured in kelvin (K).

21
Q

What does the prefix M stand for?

A

M stands for mega

mega = x 106

22
Q

Explain, in terms of particles, what happens to the pressure of a gas when its temperature is increased?

A

When the temperature of a gas is increased, the pressure increases.

  • The particles gain energy
  • The particles move faster
  • The particles collide with the container walls more often and with greater force
23
Q

What does the prefix m stand for?

A

m stands for milli

milli = x 10-3

24
Q

A substance is heated up in a science experiment. The substance is a solid to begin with.

In the graph of temperature versus time, what is happening in the section labelled D?

A

The substance is changing state from liquid to gas.

(the substance is boiling)

25
Q

Name the three quantities shown in this formula.

A

Eh = energy

m = mass

l = latent heat

27
Q

A substance is heated up in a science experiment. The substance is a solid to begin with.

In the graph of temperature versus time, what is happening in the section labelled B?

A

The substance is changing state from solid to liquid.

(the substance is melting)

28
Q

A substance is heated up in a science experiment. The substance is a solid to begin with.

What is the boiling point of the substance (temperature where it changes from liquid to gas)?

A

The boiling point of the substance is 130 ºC.

29
Q

A substance is heated in a science experiment. The substance is a solid to begin with.

In the graph of temperature versus time, what is happening in the section labelled E?

A

At point E, the substance is a gas.

It is heating up (its temperature is increasing).

30
Q

A substance is heated up in a science experiment. The substance is a solid to begin with.

What is the melting point of the substance (temperature where it changes from solid to liquid)?

A

The melting point of the substance is 60 ºC.

31
Q

A substance is heated in a science experiment. The substance is a solid to begin with.

In the graph of temperature versus time, what is happening in the section labelled C?

A

At point C, the substance is a liquid.

It is heating up (its temperature is increasing).

JGHS - N5 Physics (6 decks)

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