Magnets-Metals-Respirationš Flashcards
How do you de-magnetize an electromagnet?
Turn it off
How do you neutralize an acid?
With an alkali product such as bleach.
What is an example of an acid?
Vinegar
What colour is acid on the pH scale?
Red/Pinky colours
What is the main colour of alkaline on the pH scale?
Blue/Purpley colours
What metals are magnetic?
Iron, Nickel and Cobalt.
What colour is neutral on the pH scale?
Green or colourless.
What numbers are the pH scale to and from?
0 - 14
Tarnish meansā¦
Dullness of colour/ Loss of brightness
Conductor of electricity isā¦
Electric current can flow freely
Conductor of heat meansā¦
The heat can flow through easily
Example of conductor of electricity and heatā¦
Copper
Is steel magnetic? If so, why?
Steel is an alloy of iron which is magnetic.
How do you magnetise an unmagnetised nail?
Stroke it with a magnet
How do you use a compass to tell if something is magnetised?
The needle will point at it
Would a north and northā¦
A) attract
B) repel
C) no affect
B) repel
Would a south and southā¦
A) attract
B) repel
C) no afffect
B) repel
Would a north and southā¦
A) attract
B) repel
C) no afffect
A) attract
Would a south and north, one vertical and one horizontalā¦
A) attract
B) repel
C) no afffect
A) attract
Malleable meansā¦
Can be bent and hammered without breaking
Whatās the difference between magnets and electromagnets?
Electromagnets can be turned on and off
Sonorous meansā¦
A nice sound made when hit
Ductile meansā¦
Can be pulled into wires
High density means
The particles are closer together making the metal harder to break or bend
How do you measure density?
Density = mass OR Density = mass divided by volume
āāā
volume
What does your rib cage do?
It protects your organs like the lungs and diaphragm
What is an alveoli?
An alveoli is a tiny sack in your lungs
What is the correct word equation for respiration?
Glucose + oxygen ā”ļø carbon dioxide + water
What is an out of line result on a graph called?
An anomalie
What acid is built up during exercise?
Lactic acid
