Electro-Magnetic Spectrum

Question 1

What is a source of radio waves

Answer 1

A source is the sun, a radio,satalites,tv

Question 2

What are the effects of radio waves on the body?

Answer 2

None, they pass through the body without being absorbed.

Question 3

What is one main use for radio waves?

Answer 3

Broadcasting TV uses radiowaves to transmit to a tv

Question 4

What is a source of microwaves?

Answer 4

A mobile phone,TV, satellite and cooking tools.

Question 5

What are the effects of microwaves on the body?

Answer 5

Can be absorbed by the body causing heating of cells and burns.

Question 6

What is a main use for microwaves?

Answer 6

A microwave oven which can be used in order to heat food up.

Question 7

Whats a source of infrared radiation?

Answer 7

The sun, a light or a fire. Heat sources.

Question 8

Whats an effect of infrared on the body?

Answer 8

Can cause skin burns to the skin,

Question 9

What is one main use for infrared?

Answer 9

Using a oven stove in order to cook a piece of food.

Question 10

What are some sources for visible light?

Answer 10

The sun,
Bulb
Heat
Reactions
Lighting

Question 11

What are the effects of visible light on body?

Answer 11

You can get blindness from the light and can cause heat in hig concentration.

Question 12

Whats one main use for visible light?

Answer 12

A main use would be to see things as colours are absorbed by the object and whats reflected back to the retina is all other colours not absorbed.

Question 13

What are sources of UV?

Answer 13

Any UV light/lamp.

The sun

Question 14

What are effects of Uv on the body?

Answer 14

Can cause skin burns and burns to cells

Question 15

Whats a main use for UV?

Answer 15

Seeing something which may not be seen.

Question 16

Whats an source of xrays?

Answer 16

An xray machine.

The sun

Question 17

What are uses of xrays?

Answer 17

See an object which reflects the xray.

Bone density using a xray machine.

Question 18

What are the effects of xrays?

Answer 18

Seeing objects through a material.

Question 19

Whats a source of gamma rays?

Answer 19

Nuclear reactions

The sun

Question 20

What are the effects of the body for gamma rays?

Answer 20

Skin burns, kills any cells completely.

Radiation burns

Question 21

Whats one main use for gamma rays?

Answer 21

One main use for gamma rays is sterilising medical equipment from germs / bacteria cleaning them. Preventing spread of illness.

Question 22

How do xrays work?

Answer 22

Xrays are produced when electrons strike metal target and are liberated from the heated filament, the xrays are produced when the electrons collide with atoms and nuclei of the target.

Question 23

How xrays images are made?

Answer 23

X-ray imaging utilises the ability of high frequency electromagnetic waves to pass through soft parts of the human body largely unimpeded.

Question 24

X-rays advantage and disadvantage.

Answer 24

Advantages of x-rays:

X-rays are used to treat malign tumors before its spreads throughout the human body.
They help radiologists identify cracks, infections, injury, and abnormal bones.
They also help in identifying bone cancer.
X-rays help in locating alien objects inside the bones or around them.

Disadvantages of x-rays:
x-rays makes our blood cells to have higher level of hydrogen peroxide which could cause cell damage.
a higher risk of getting cancer from X-rays.
The X-rays are able to change the base of the DNA causing a mutation.