Magnets-Metals-RespirationšŸ Flashcards

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1
Q

How do you de-magnetize an electromagnet?

A

Turn it off

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2
Q

How do you neutralize an acid?

A

With an alkali product such as bleach.

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3
Q

What is an example of an acid?

A

Vinegar

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4
Q

What colour is acid on the pH scale?

A

Red/Pinky colours

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5
Q

What is the main colour of alkaline on the pH scale?

A

Blue/Purpley colours

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6
Q

What metals are magnetic?

A

Iron, Nickel and Cobalt.

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7
Q

What colour is neutral on the pH scale?

A

Green or colourless.

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8
Q

What numbers are the pH scale to and from?

A

0 - 14

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9
Q

Tarnish meansā€¦

A

Dullness of colour/ Loss of brightness

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10
Q

Conductor of electricity isā€¦

A

Electric current can flow freely

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11
Q

Conductor of heat meansā€¦

A

The heat can flow through easily

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12
Q

Example of conductor of electricity and heatā€¦

A

Copper

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13
Q

Is steel magnetic? If so, why?

A

Steel is an alloy of iron which is magnetic.

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14
Q

How do you magnetise an unmagnetised nail?

A

Stroke it with a magnet

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15
Q

How do you use a compass to tell if something is magnetised?

A

The needle will point at it

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16
Q

Would a north and northā€¦
A) attract
B) repel
C) no affect

A

B) repel

17
Q

Would a south and southā€¦
A) attract
B) repel
C) no afffect

A

B) repel

18
Q

Would a north and southā€¦
A) attract
B) repel
C) no afffect

A

A) attract

19
Q

Would a south and north, one vertical and one horizontalā€¦
A) attract
B) repel
C) no afffect

A

A) attract

20
Q

Malleable meansā€¦

A

Can be bent and hammered without breaking

21
Q

Whatā€™s the difference between magnets and electromagnets?

A

Electromagnets can be turned on and off

22
Q

Sonorous meansā€¦

A

A nice sound made when hit

23
Q

Ductile meansā€¦

A

Can be pulled into wires

24
Q

High density means

A

The particles are closer together making the metal harder to break or bend

25
Q

How do you measure density?

A

Density = mass OR Density = mass divided by volume
ā€”ā€”ā€“
volume

26
Q

What does your rib cage do?

A

It protects your organs like the lungs and diaphragm

27
Q

What is an alveoli?

A

An alveoli is a tiny sack in your lungs

28
Q

What is the correct word equation for respiration?

A

Glucose + oxygen āž”ļø carbon dioxide + water

29
Q

What is an out of line result on a graph called?

A

An anomalie

30
Q

What acid is built up during exercise?

A

Lactic acid