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WorksheetsCAX 8 Phy 2023
Total questions: 87
Worksheet time: 1hrs 27mins
Name
Class
Date
1.
Another name for heat energy is (a)
2.
What is the unit for measuring heat?
a)
joules
b)
degrees celcius
c)
grams
d)
Newtons
3.
What is a unit for measuring temperature?
a)
degrees celcius
b)
joules
c)
Newtons
d)
grams
4.
What happens when a substance is heated?
a)
particles move more
b)
particles get bigger
5.
What happens when a substance is cooled?
a)
particles slow down
b)
particles get smaller
6.
The amount of heat energy in an object depends on three things. Which of these things does it not depend on?
a)
Colour
b)
Material
c)
Temperature
d)
Mass
7.
Which statement is correct?
a)
Temperature describes how hot or cold something is.
b)
Temperature is a form of energy.
c)
Heat describes how hot or cold something is.
d)
Thermal energy is the same as temperature.
8.
If you have water in boiling potatoes and turn up the gas what happens to temperature of the boiling water?
a)
Stays the same
b)
Increases
c)
Decreases
9.
You see a glass of water and ice. What is the most likely temperature?
a)
0 oC
b)
5 oC
c)
-5 oC
d)
Room temperature
10.
Heat transfer...
a)
involves hot obects transferring energy to cold ones
b)
involves cold objects transferring energy to hot ones
11.
What is needed for a substance to be a good conductor of heat?
a)
Particles being close together and unable to move past each other
b)
Particles being close together and able to move past each other
c)
Particles being far apart and being able ot move past each other
d)
Having no particles
12.
Which type of heat transfer occurs within solids?
a)
conduction
b)
convection
c)
radiation
13.
Conduction occurs in...
a)
solids
b)
liquids
c)
gases
d)
a vacuum
14.
Conduction is caused by...
a)
particles vibrating more against each other
b)
particles moving past each other
c)
infra-red light
15.
The increase in size of heating solids is caused by...
a)
particles vibrating more
b)
particles getting bigger
16.
When substances are heated they...
a)
expand
b)
contract
17.
When substances are cooled they...
a)
contract
b)
expand
18.
Which is the best conductor of heat?
a)
copper
b)
water
c)
air
d)
glass
19.
Which is the best insulator of heat?
a)
air
b)
copper
c)
water
d)
glass
20.
Solids are better heat conductors than liquids or gases because:
a)
the particles are closer together in solids.
b)
the particles are closer together in liquids.
c)
the particles are closer together in gases.
d)
the particles in a solid cannot move.
21.
Convection occurs in...
a)
Liquids and gases
b)
Solids and liquids
c)
Solids and gases
d)
a vacuum
22.
What happens to a fluid when it is heated?
a)
Substance becomes less dense
b)
Substance becomes more dense
c)
Particles get bigger
d)
Particles get smaller
23.
When a liquid is heated...
a)
Warmer particles move up
b)
Cooler particles move up
c)
Warmer particles move to the side
d)
Warmer and colder particles move in all directions randomly
24.
In a fridge or freezer the cooling unit should be placed...
a)
At the top
b)
At the bottom
c)
In the middle
d)
Position does not matter
25.
In an oven food will cook faster at...
a)
The top
b)
The bottom
c)
In the middle
d)
Position does not matter
26.
Fruit and vegetables are kept at the bottom of the fridge where...
a)
It is coldest
b)
It is warmest
c)
They look pretty
27.
Which type of freezer is more efficient?
a)
A top loading freezer
b)
A front opening freezer
28.
Front opening freezers are more inefficient than top loading ones because...
a)
When you open the front opening freezer the cold air drops out
b)
When you open the front loading freezer cold air goes out and up
29.
When people huddle around a campfire, the smoke seems to follow them. Which process is resonsible for this?
a)
Convection
b)
Conduction
c)
Radiation
d)
Saying "white rabbit" attracts the smoke
30.
In a fire, it is best to lie down when there is a lot of smoke. As well as breathing in less of the smoke this ALSO helps because...
a)
Colder air will sink to the floor
b)
Crawling is faster than running
31.
Which will reflect infra-red radiation best?
a)
Shiny, silver surface
b)
Shiny, black surface
c)
Dull, silver surface
d)
Dull, black surface
32.
Which will absorb infra-red rediation best?
a)
Dull, black surface
b)
Shiny, black surface
c)
Dull, silver surface
d)
Shiny, silver surface
33.
The grill at the top of an oven heats food through...
a)
Radiation
b)
Conduction
c)
Convection
34.
How does heat energy travel from the Sun to the Earth?
a)
Radiation
b)
Conduction
c)
Convection
35.
Infrared radiation can travel through:
a)
transparent objects
b)
opaque objects
c)
empty space
36.
Which statement does NOT describe a similarity between light and infrared
radiation?
a)
They are both visible.
b)
They can both be focused.
c)
They can both be refl ected.
d)
They can both travel through empty space.
37.
Which planet is closest to the sun?
a)
Mercury
b)
Earth
c)
Jupiter
d)
Uranus
38.
Which planet is the hottest?
a)
Venus
b)
Saturn
c)
Mars
d)
Neptune
39.
Which planet takes the longest to complete an orbit around the sun?
a)
Neptune
b)
Saturn
c)
Earth
d)
Mercury
40.
Which is the largest planet?
a)
Jupiter
b)
Uranus
c)
Mars
d)
Venus
41.
Which is the smallest planet?
a)
Mercury
b)
Mars
c)
Saturn
d)
Uranus
42.
Give the name of the force which keeps the planets in their orbits.
(a)
43.
What is the unit for mass?
a)
grams
b)
Newtons
c)
meter
d)
litres
44.
What is the unit for weight?
a)
N
b)
g
c)
cm
d)
mL
45.
Identify two variables increase the force of gravity on a object?
a)
Increased mass of an object
b)
Increasing distance between two objects
c)
Decreased mass of an object
d)
Decreasing distance between two objects
46.
Light travels at 300 000 km/s.
At this speed it would take 12 600 000 seconds to travel between the Sun and the next nearest star, Alpha Centauri.
Using this information, calculate the distance between these two stars.
(a)
47.
What are two uses of a geostationary satellite?
a)
Television
b)
Telecommunications
c)
3D mapping of the world
d)
Spying
48.
What are two uses of a polar orbiting satellite?
a)
3D mapping of the world
b)
Spying
c)
Television
d)
Telecommunications
49.
Which type of satellite has a fixed position relative to the Earth?
a)
Geostationary
b)
Polar orbiting
50.
Which type of satellite orbit over the Earth's poles?
a)
Polar orbiting
b)
Geostationary
51.
Satellites for connecting phones need to...
a)
Complete their orbit over 24 hours
b)
Travel in low orbits and very high speeds
52.
Satellites for military applications need to...
a)
Travel in low orbits and very high speeds
b)
Complete their orbit over 24 hours
53.
Where is the orbit of Mars?
a)
It is between the orbit of Earth and the orbit of Jupiter.
b)
It is between the Sun and the orbit of Venus
c)
It is between the orbit of Venus and the orbit of Earth.
d)
It is outside the orbit of Jupiter.
54.
When will a planet appear brightest in the night sky?
a)
When it is closest to the Earth.
b)
When it is furthest from the Earth.
c)
When it is on the opposite side of the Sun to the Earth.
d)
During a solar flare.
55.
Which is the biggest?
a)
The average distance between Pluto and the Sun
b)
The average distance between the Moon and the Earth
c)
The average distance from the Earth and the Sun.
d)
The average distance from Mercury to the Sun is
56.
Which is the smallest?
a)
The average distance between the Moon and the Earth
b)
The average distance between Pluto and the Sun
c)
The average distance from the Earth and the Sun.
d)
The average distance from Mercury to the Sun is
57.
In December which hemisphere is angled closest to the Sun?
a)
Southern
b)
Northern
58.
In July which hemisphere is angled closest to the Sun?
a)
Northern
b)
Southern
59.
The nights are longest in the...
a)
Winter
b)
Summer
c)
Spring
d)
Autumn
60.
The nights are shortest in the...
a)
Summer
b)
Winter
c)
Spring
d)
Autumn
61.
Which feature is NOT present in the heliocentric model?
a)
Planet orbits are eliptical.
b)
Planets orbit around the Sun.
62.
Which planet is too cold for liquid water?
a)
Mars
b)
Earth
c)
Venus
d)
Mercury
63.
Which planet is too hot for liquid water?
a)
Venus
b)
Earth
c)
Mars
d)
Neptune
64.
Which explains why the length of the night changes throughout the year?
a)
Earth's tilt
b)
Earth's rotation
c)
Sun spots
65.
The weight of an astronaught on the Moon is ...... the weight of an astronaught on the Earth.
a)
less than
b)
more than
c)
equal to
66.
The mass of an astronaught on the Moon is ...... the mass of an astronaught on the Earth.
a)
equal to
b)
less than
c)
more than
67.
Which supports the idea that Pluto is a planet?
a)
It orbits the Sun
b)
Its orbit is not in the same plane as others
c)
It has an atmosphere
68.
Which supports the idea that Pluto is not a planet?
a)
Its orbit is not in the same plane as others
b)
It orbits the Sun
c)
It has an atmosphere
69.
Which idea neither supports or refutes the idea that Pluto is a Planet?
a)
It has an atmosphere
b)
Its orbit is not in the same plane as others
c)
It orbits the Sun
70.
Gravitational field strength on Venus is 9 N/kg. Work out the weight of a 2 kg book on Venus.
(a)
71.
Gravitational field strength on Mars is 3.5 N/kg. Work out the mass of a 1750N car on Mars.
(a)
72.
Work out the weight of a 300 g iPad on Earth.
(a)
73.
Gravitational field strength on Jupiter is 26 N/kg. Work out the mass of a 780N desk on Mars.
(a)
74.
The length of time it takes a planet to go around the Sun.
(a)
75.
The path that a planet takes around the Sun, or the path that a moon or
satellite takes around a planet.
(a)
76.
Millions of stars grouped together.
(a)
77.
A pattern of stars.
(a)
78.
Anything that orbits a planet.
(a)
79.
Which model (or models) of the Solar System has the Earth at the centre?
a)
Ptolemy (Geocentric, circular orbits)
b)
Keplar (Heliocentric, ellipitcal orbits)
80.
Which model (or models) of the Solar System says that the planets move in elliptical orbits?
a)
Ptolemy (Geocentric, circular orbits)
b)
Keplar (Heliocentric, ellipitcal orbits)
81.
Which model (or models) of the Solar System has the Moon moving around the Earth?
a)
Ptolemy (Geocentric, circular orbits)
b)
Keplar (Heliocentric, ellipitcal orbits)
82.
Which model (or models) of the Solar System was suggested using naked-eye observations?
a)
Ptolemy (Geocentric, circular orbits)
b)
Keplar (Heliocentric, ellipitcal orbits)
83.
Which model (or models) of the Solar System has eight planets, including the Earth?
a)
Ptolemy (Geocentric, circular orbits)
b)
Keplar (Heliocentric, ellipitcal orbits)
84.
Which model (or models) of the Solar System says that the planets move in circular orbits?
a)
Ptolemy (Geocentric, circular orbits)
b)
Keplar (Heliocentric, ellipitcal orbits)
85.
Which model (or models) of the Solar System explains all our observations of the Solar System?
a)
Ptolemy (Geocentric, circular orbits)
b)
Keplar (Heliocentric, ellipitcal orbits)
86.
Which model (or models) of the Solar System has the Sun at the centre?
a)
Ptolemy (Geocentric, circular orbits)
b)
Keplar (Heliocentric, ellipitcal orbits)
87.
Which model (or models) of the Solar System was suggested to explain observations made using telescopes?
a)
Ptolemy (Geocentric, circular orbits)
b)
Keplar (Heliocentric, ellipitcal orbits)
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