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MEASUREMENT AND HEAT - GRADE 7/8

Total questions: 50

Worksheet time: 50mins

Name
Class
Date
1.
  1. The temperature scale that has lower fixed point 0 degree celsius and the upper fixed point at 100 degree celsius is called
a)

Kelvin scale

b)

Celsius scale

c)

Absolute scale

d)

Fahrenheit scale

2.

In which of the following modes of heat transfer, do the molecules travel from the hotter part of the body to the colder part?

a)

Conduction

b)

Convection

c)

Radiation

d)

All of the three

3.

Ventilation in rooms is due to

a)

Conduction

b)

Convection

c)

Radiation

d)

All of the three

4.
what is the meaning of conduction
a)
when heat transfers from objects that are not touching
b)
heat rise 
c)
cold fall
d)
when heat transfers from objects that are touching
5.
what kind of heat is happening when the sun heats your body
a)
conduction
b)
convection
c)
density
d)
radiation
6.
heat energy traveling through space is an example of _____
a)
convection
b)
density
c)
radiation
d)
conduction
7.
A group of friends gather around a fire to stay warm.
a)
conduction
b)
convection
c)
radiation
8.
The man goes to take the hot pot off the stove with his bare hands.
a)
conduction
b)
convection
c)
radiation
9.
Warm air rises and the cool air sinks.
a)
conduction
b)
convection
c)
radiation
10.
What is the transfer of heat by movement of liquids or gases?
a)
conduction
b)
convection
c)
radiation
11.
You are doing your homework at a desk that is underneath a lamp. You start to feel hotter because of _?_ from the lamp.
a)
conduction
b)
convection
c)
radiation
12.

In heat transfer, heat always flows from the _?_ substance to the _?_ substance.

a)

hotter to colder

b)

colder to hotter

c)

hotter to hotter

d)

colder to colder

13.
Which of the following is the best example of conduction?
a)
A light bulb warming a lampshade
b)
An egg cooking in a frying pan
c)
Water boiling in a pot
d)
Gases circulating in the atmosphere
14.

The candle will slowly heat the metal and transfer the heat directly to the mans hand. This is an example of _?_.

a)

conduction

b)

convection

c)

radiation

15.

The moving of air in the image is an example of _?_.

a)

radiation

b)

convection

c)

conduction

16.

Which material will heat travel through the fastest?

a)

Plastic

b)

Wood

c)

Metal

17.

How do molecules react when heat energy is added to them?

a)

They feel warmer but stay in place

b)

They feel warmer and move slower.

c)

They feel warmer and move faster

d)

Molecules do not react with heat energy only solar energy

18.

Which of the following is an example of heat transfer by Conduction?

a)

Burning your fingers on a hot iron.

b)

Heat from a heater warming up your whole house

c)

Standing by a campfire and feeling the heat.

d)

All of the above.

19.

Which of the following is an example of heat transfer by Convection?

a)

Burning your fingers on a hot iron.

b)

Heat from a heater warming up your whole house

c)

Standing by a campfire and feeling the heat.

d)

All of the above.

20.
What is the measurement of the average kinetic energy of a substance?
a)
Kinetic energy
b)
Temperature
c)
Thermal energy
d)
Potential energy
21.
What is a substance that does NOT conduct heat well?
a)
Conductor
b)
Insulator
c)
Convector
d)
Radiator
22.
What is the total amount of kinetic energy in a substance?
a)
Potential energy
b)
Kinetic energy
c)
Thermal energy
d)
Temperature
23.
The temperature of a substance increases as___.
a)
the substance expands
b)
the average kinetic energy of its particles increases
c)
the substance's volume increases
d)
the substance's mass increases
24.
The Law of Conservation of Energy states:
a)
Energy can created or destroyed but not transformed 
b)
Energy cannot be created or destroyed, it can only transformed
c)
Energy can't be created, destroyed or transformed
25.

If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________

a)

one reaches a temperature of zero

b)

they both have an equal temperature

c)

one runs out of energy

26.
The perimeter of a rectangle of length 7 cm and width 60 mm is:
a)
26 cm 
b)
42 mm 
c)
42 cm 
d)
270 mm
27.
A square of area 36 m2 has side length:
a)
2 m
b)
6 m
c)
18 m
d)
9 m
28.
Which metric unit would be most appropriate for measuring the distance from Brisbane to Adelaide?
a)
metres
b)
kilometres
c)
centimetres
d)
millimetres
29.
What tool do scientists use to measure volume of a liquid?
a)
graduated cylinder
b)
meter stick
c)
spring scale
d)
triple-beam balance
30.
What do we use a meter stick to measure?
a)
volume
b)
distance/length
c)
mass
d)
weight
31.
When measuring the temperature, what SI unit(s) do we use?
a)
Celsius only
b)
Fahrenheit, Celsius
c)
Kelvin, Fahrenheit
d)
Kelvin, Celsius
32.
Jamal put a block of wood on a triple-beam balance and read the amount in grams.  What was he measuring?
a)
temperature
b)
mass
c)
weight
d)
volume
33.
William measured the distance from the door knob to the floor and got 1 meter.  What tool did he use?
a)
meter stick
b)
thermometer
c)
graduated cylinder
d)
electronic scale
34.

Roni measured the weight of her agenda. The unit she used was ____________.

a)

liter

b)

meter

c)

gram

d)

Newton

35.

Cassie measured the diameter of a quarter. What unit did she use?

a)

meter

b)

kilometer

c)

millimeter

d)

centimeter

36.

What is the Si/metric unit for mass?

a)

gram

b)

pound

c)

liter

d)

degree celsius

37.

Where did the metric system originate from?

a)

France

b)

England

c)

United States

d)

Africa

38.

Which is the biggest measure of distance?

a)

1 meter

b)

1 kilometer

c)

1 centimeter

d)

1 millimeter

39.

How many cm (centimeters) in a meter?

a)

1

b)

10

c)

100

d)

1000

40.

Thermometer is used to measure?

a)

Time

b)

Temperature

c)

Mass

d)

Volume

41.

Ammeter is used to measure?

a)

Time

b)

Mass

c)

Electric current

d)

Temperature

42.

Which has GRAVITY?

a)

Weight

b)

Mass

c)

Temperature

d)

electric power

43.

Which is the CORRECT Reading?

a)

A

b)

B

c)

C

d)

ALL

44.

Beam balance is used to measure _____________

a)

Weight

b)

Mass

c)

Temperature

d)

Cellphones

45.

Spring Scale is used to measure _____________

a)

Weight

b)

Mass

c)

Temperature

d)

Cellphones

46.
What prefix is represented by the following symbol:  k
a)
hecto
b)
kilo
c)
deci
d)
deka
47.
1 cm = ________mm
a)
1
b)
100
c)
10
d)
1000
48.
What unit of measurement would you use to measure a pencil?
a)
Inches 
b)
Feet
c)
Yards
d)
Miles
49.
What tool would you use to measure this real life object?
a)
measuring tape
b)
yardstick
c)
ruler
d)
measuring cup
50.

4 km = ___ meters

a)

40

b)

0.4

c)

4,000

d)

400

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