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Worksheets

Yr11 Ph11

Total questions: 67

Worksheet time: 34mins

Name
Class
Date
1.

Which particle has a negative charge

a)

Alpha

b)

Electron

c)

Proton

d)

Neutron

2.

What is an isotope

a)

An atom with the same number of neutrons different number of protons

b)

An atom that has lost or gained an electron

c)

An atom with the same number of protons, different number of neutrons

d)

An atom with the same number of electrons and different neutrons

3.

Select ALL the types of radiation.

a)

Alpha particle

b)

Beta particle

c)

Gamma rays

d)

Neutron rays

4.

Which can be a type of radiation emitted during radioactive decay?

a)

Alpha rays

b)

Beta rays

c)

Gamma Rays

d)

Neutron flares

5.

During radioactive decay, the structure and mass change.

a)

True

b)

False

6.

What type of nuclear reaction takes places inside nuclear power stations?

a)

nuclear emission

b)

nuclear fission

c)

nuclear fusion

d)

radioactive stabilization

7.

The diagram shows radioactive waste thrown into the ocean that causes mutations in aquatic life. Why does this happen?

a)

Radiation can damage cells & DNA

b)

The energy released heated the seawater.

c)

The fish used the radiation to treat cancer.

8.

Radiation therapy can be used to treat what condition?

a)

acne

b)

cancer

c)

indigestion

9.

The diagram shows radioactive waste thrown into the ocean that causes mutations in aquatic life. Why does this happen?

a)

Radiation can damage cells & DNA

b)

The energy released heated the seawater.

c)

The fish used the radiation to treat cancer.

10.

What is an isotope

a)

An atom with the same number of neutrons different number of protons

b)

An atom that has lost or gained an electron

c)

An atom with the same number of protons, different number of neutrons

d)

An atom with the same number of electrons and different neutrons

11.
The three types of nuclear radiation in increasing order of penetrating power are ____.  
a)

alpha, beta, gamma 

b)
X ray, beta, gamma
c)
alpha, gamma, beta 
d)
X ray, gamma, beta 
12.
When a nucleus undergoes nuclear decay by gamma rays, the atomic number of the element....
a)
remains the same
b)
  decreases by one.
c)
increases by one.
d)
increases by two.
13.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
14.
Which type of radiation releases an electron?
a)
Alpha radiation
b)
Beta radiation
c)
gamma radiation
15.
What type of radiation can be stopped by clothing or a piece of paper?
a)
Alpha radiation
b)
Beta radiation
c)
gamma radiation
16.
What type of radiation can be stopped by clothing or a piece of paper?
a)
Alpha radiation
b)
Beta radiation
c)
gamma radiation
17.
Which is NOT a characteristic of gamma radiation?
a)
High energized photon of light
b)
Can be stopped by a sheet of aluminum foil
c)
Is the most harmful type of radiation to humans
d)
Our use of protection is concrete, or several inches of lead
18.

The weakest radioactive emission is

a)

alpha

b)

beta

c)

gamma

19.

Which radiation carries no charge

a)

alpha

b)

beta

c)

gamma

20.

What is the energy that are waves or particles that are given off from an object?

a)

radiation

b)

decay

c)

radiometric dating

d)

isotope

21.

This man was poisoned by

a)

half-life

b)

radiation

c)

daughter atoms

d)

Geiger Counter

22.

How can radiation hurt us?

a)

by exposing us to X-rays

b)

Can make us spend money

c)

destroys our cells and DNA

23.

Radiation can help us by

a)

treating cancerous masses in our body

b)

X-ray

c)

changing out cellular DNA

d)

helping us learn and pass our Scantron and LEAP

24.

The positive charge inside an atom

a)

neutron

b)

electron

c)

proton

25.

The SI unit of radioactivity is

a)

Curie

b)

Radon

c)

Becquerel

d)

Sievert

26.
In order of most to least penetrating radiation we have
a)
Alpha , Beta,  Gamma
b)
Beta , Gamma , Alpha
c)
Gamma, Beta, Alpha
d)
Gamma, Alpha, Beta
27.

Which type of radiation releases an electron?

a)

Alpha radiation

b)

Beta radiation

c)

Gamma radiation

d)

Theta radiation

28.
Name the instrument used to detect radioactivity.
a)
voltmeter
b)
ohmeter
c)
seismograph
d)
geiger counter
29.
What is Half-life?
a)
The amount of time it takes for some of the nuclei in a sample of the isotope to decay
b)
The amount of time it takes for half the electrons in a sample of the isotope to decay
c)
The amount of time it takes for half the nuclei in a sample of the isotope to decay
d)
the amount of time it takes to double the nuclei in a sample of the isotope to decay
30.
What is the structure of an alpha particle?
a)
An electron
b)
A neutron
c)
Two protons and two neutrons. This is the same as a helium nucleus.
d)
An electromagnetic wave
31.
Which type of radiation is the least penetrating?
a)
Alpha
b)
Beta
c)
X-ray
d)
Gamma
32.

Which type of radiation travels the furthest in air?

a)

Alpha

b)

Beta

c)

Sound

d)

Gamma

33.
What charge is an alpha particle?
a)
It's a wave, it has no charge
b)
Neutral (no charge)
c)
Positively charged.
d)
Negatively charged.
34.
What is the structure of an alpha particle?
a)
An electron
b)
A neutron
c)
Two protons and two neutrons. This is the same as a helium nucleus.
d)
An electromagnetic wave
35.
Which type of radiation is the least penetrating?
a)
Alpha
b)
Beta
c)
X-ray
d)
Gamma
36.

Which type of radiation travels the furthest in air?

a)

Alpha

b)

Beta

c)

Sound

d)

Gamma

37.
What charge is an alpha particle?
a)
It's a wave, it has no charge
b)
Neutral (no charge)
c)
Positively charged.
d)
Negatively charged.
38.
What device detects radiation?
a)
A Muller-Corner tube.
b)
A Geiger-Muller tube.
c)
A U-tube.
d)
A Rutherford tube.
39.
What material can be used to absorb alpha radiation?
a)
Thin aluminium (a few mm thick)
b)
Thick lead or concrete
c)
A piece of wood
d)
A sheet of paper
40.
What is the range of alpha radiation in air?
a)
A few centimetres (up to 5 cm)
b)
About 1 metre
c)
100 metres
d)
More than 1km (almost infinite)
41.
What material can be used to absorb beta radiation?
a)
Thick lead or concrete
b)
Thin aluminium (a few mm thick)
c)
A sheet of paper
d)
A piece of wood
42.

What is the range of beta radiation in air

a)

A few centimetres (up to 5 cm)

b)

A few metres

c)

100 metres

d)

More than 1km (almost infinite)

43.

What material can be used to absorb gamma radiation?

a)

Thin aluminium (a few mm thick)

b)

Thick lead or concrete

c)

A piece of wood

d)

A sheet of paper

44.

Which radiation is the most penetrating?

a)

Alpha

b)

Beta

c)

Sound

d)

Gamma

45.
What is the range of gamma radiation in air
a)
A few centimetres (up to 5 cm)
b)
About 1 metre
c)
100 metres
d)
More than 1km (almost infinite)
46.
What happens to an atom when it is ionised?
a)
It loses or gains neutrons
b)
It loses or gains electrons
c)
It loses or gains protons
d)
It disappears
47.
Which radiation is the most ionising?
a)
Alpha
b)
Beta
c)
X-ray
d)
Gamma
48.
What is the structure of a beta particle?
a)
An electron
b)
A neutron
c)
Two protons and two neutrons. This is the same as a helium nucleus.
d)
An electromagnetic wave
49.
Which type of nuclear radiation is not a particle?
a)
Alpha
b)
Beta
c)
Gamma
d)
Neutron
50.
What charge is an electron?
a)
It's a wave, it has no charge
b)
Neutral (no charge)
c)
Positively charged.
d)
Negatively charged.
51.

As well as alpha, beta and gamma radiation, the nucleus can also emit...

a)

Sound

b)

A neutron

c)

Isotopes

d)

Half-life

52.

A slice of bread is placed under a red-hot electric grill to make toast. What is/are the main process/processes by which the energy reach the bread?

a)

By conduction only.

b)

By conduction and convection

c)

By convection and radiation

d)

By radiation only

53.

The radiators on motor cars are painted black because ________.

a)

black surface is more beautiful

b)

a black surface can conduct heat better

c)

a black surface is a good radiator of infra-red rays

d)

it will not get dirtt easily

54.

By which process is thermal energy transferred through a vacuum?

a)

conduction only

b)

convection only

c)

conduction and convection only

d)

radiation only

55.

Which type of surface is the best absorber of infra-red rays?

a)

black and rough

b)

black and smooth

c)

white and rough

d)

white and smooth

56.

Which type of surface is the best radiator of infra-red rays?

a)

black and rough

b)

black and smooth

c)

white and rough

d)

white and smooth

57.

The diagram shows a simple form of solar water heater. Which tubing would give the hottest water from the outlet?

a)

black, plastic

b)

copper, painted black

c)

copper, painted white

d)

white plastic

58.

A slice of bread is placed under a red-hot electric grill to make toast. What is/are the main process/processes by which the energy reach the bread?

a)

By conduction only.

b)

By conduction and convection

c)

By convection and radiation

d)

By radiation only

59.

We feel the intense heat from the Sun when we stand in the open during noon time. How is heat transferred from the Sun to the Earth?

a)

By radiation only.

b)

By conduction and radiation only.

c)

By convection and radiation only.

d)

By conduction, convection and radiation.

60.

A teapot is needed to keep tea hot for a long period of time. Which of the following best explains why teapots are usually made of a shiny metal?

a)

Shiny surfaces are good absorbers of infra-red radiation.

b)

Shiny surfaces are good emitters of infra-red radiation.

c)

Shiny surfaces are poor absorbers of infra-red radiation.

d)

Shiny surfaces are poor emitters of infra-red radiation.

61.

Four different closed vessels contain equal amounts of ice.


Which vessel would take the shortest time for all the ice to melt?

a)

A

b)

B

c)

C

d)

D

62.

A piece of aluminium foil is used to wrap around food to be cooked in an oven. The foil has a shiny side and a dull side. Which side should be on the outside and why?

a)

The dull side should be on the outside because it absorbs heat by radiation faster.

b)

The shiny side should be on the outside because it is a better conductor of heat.

c)

The dull side should be on the outside because it encourages convection current to be set up.

d)

The shiny side should be on the outside because it is a better absorber of heat by radiation.

63.

The diagram shows a vacuum flask.

The main reason for the vacuum is to reduce heat transfer by

a)

conduction and convection.

b)

conduction only.

c)

radiation only.

d)

convection only.

64.

The following cans are filled with hot water. Which one of the following cans will lose heat most quickly?

a)

A

b)

B

c)

C

d)

D

65.

Two cars, one painted dull black and the other a shiny white, were left in the sun. Which car will be heated up faster? When the two cars had reached the same temperature they were driven into the shade. Now, which car will cool down faster?

a)

A

b)

B

c)

C

d)

D

66.

A few soccer boys were trapped in a cave in Thailand in 2018. One of the things that rescuers did was to wrap a thin plastic blanket, with a shiny metallic surface, around the boys. What type of thermal energy transfer (heat loss) is the shiny surface intended to reduce?

a)

conduction

b)

convection

c)

radiation

d)

conduction and convection

67.

Which of the following will increase the rate of heat transfer?

1 Increase the temperature difference.

2 Paint the surface black.

3 Increase the surface area.

a)

1 and 2 only

b)

1 and 3 only

c)

2 and 3 only

d)

1, 2 and 3

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