waves

Question 1

What way do the vibrations go in a transverse wave

Answer 1

At a right angle to the direction of energy transfer

Question 2

what way do the vibrations go in a longitudinal wave

Answer 2

Parallel to the direction of energy transfer

Question 3

what is the wavelength

Answer 3

the distance between a point on one wave to the same point on an adjacent wave

Question 4

what is the amplitude

Answer 4

The maximum displacement of a point on a wave away from its undisturbed position

Question 5

what equations are used in waves

Answer 5

wave speed = wavelength x frequency

Question 6

how do you work out the time period

Answer 6

1/frequency

Question 7

what is a time period

Answer 7

the amount of time it takes for a full cycle of the wave to pass a point

Question 8

All waves can be Absorbed, transmitted or reflected. True or false

Answer 8

True

Question 9

The angle of incidence does NOT equal the angle of reflection, \true or false

Answer 9

False

Question 10

What different forms of energy are there?

Answer 10

• thermal
• kinetic
• chemical
• electrical
• light
• sound

Question 11

What 4 ways can energy be transferred

Answer 11

mechanically
electrically
radiation
heating

Question 12

How is energy transferred by heating?

Answer 12

conduction, convection, radiation

Question 13

What is renewable energy

Answer 13

A natural energy source that can be renewed and re-used

Question 14

Name some examples of renewable energy

Answer 14

Solar energy.
Wind energy.
Hydro energy.
Tidal energy.
Geothermal energy.
Biomass energy.

Question 15

Give some examples of non renewable energy sources

Answer 15

coal, natural gas, oil, and nuclear energy.

Question 16

What is a balanced force?

Answer 16

Two forces acting on an object which are equal in size but act in opposite directions

Question 17

What is an unbalanced force

Answer 17

Two forces acting on an object that aren’t equal in size.