Wavies Flashcards

1
Q

Tension is

A

Stretching

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2
Q

Reflection means

A

Bouncing of light

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3
Q

Resultant force is

A

How much the force moves/vibrates something.

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5
Q

The Lens is the

A

Part in the eye that refracts light

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6
Q

Dispersion is

A

Making all the different colours of the rainbow from a white light.

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7
Q

What r the key features of a wave

A

Amplitude, wavelength, peak (or crest) and trough.

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8
Q

Wot is amplitude

A

The distance from the middle of the wave to the top or bottom of the wave

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9
Q

Wot is the trough

A

The bottom of the wave

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10
Q

Wot is the peak (or crest)

A

The top of the wave

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11
Q

Wot is the law of reflection

A

The law of reflection is that the angle of incidence will be the same as the angle of reflection.

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12
Q

Wot is a force

A

A force is something being pushed or pulled

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13
Q

Contact force is a?

A

Force that touches something to make the force

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14
Q

Non-contact force is a?

A

Force that doesn’t touch anything as the force is doing something

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15
Q

Force diagram is a ?

A

Diagram that shows all the forces that are in place

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16
Q

Newtons are?

A

A measurement on how much force something is

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17
Q

Newton metre

A

A piece of equipment to measure newtons

18
Q

Deform

A

When something compresses

19
Q

Compress

A

When something is squashed

20
Q

Reaction force

A

This is a counter for a force

21
Q

Extension

A

When something elongates

22
Q

Elastic limit

A

When something can’t stretch any more

23
Q

Hooke’s law is

A

If u double the weight, the length will also double

24
Q

Balanced forces

A

Two or more forces that have no affect on each other

25
Q

Unbalanced forces

A

A force that is stronger than the other

26
Q

Weight

A

The forces of gravity times how heavy you r

27
Q

Friction is

A

A force that slows things down as it rubs on something else

28
Q

Air resistance/drag is

A

A force that slows u down when u move fast

29
Q

Gravity is

A

The force that pulls us down and keeps un on the Earth

30
Q

Water resistance

A

The current that pulls us back in water

31
Q

Streamlined means

A

That something is more air resistant

32
Q

Thrust is

A

The force that makes your car move

33
Q

Upthrust is

A

The force that keeps you floating in water

34
Q

‘Refraction’ means

A

‘The bending of light

34
Q

Wavelength is

A

The distance between one part of a wave to the same part on another wave

35
Q

What is the pupil

A

A Hole in the iris

36
Q

The 3 affects of forces are

A

Movement, push and pull