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Worksheets

grade 4

Total questions: 57

Worksheet time: 37mins

Name
Class
Date
1.
The movement of thermal energy from warmer objects to cooler objects. 
a)
friction
b)
heat
c)
solar energy
d)
solid
2.

..................... is the transfer or movement of heat between two objects

that are touching.

a)

Conduction

b)

Convection

c)

Radiation

3.

............................... is the transfer or movement of heat within a liquid or gas.

a)

Conduction

b)

Convection

c)

Radiation

4.

....................... is the transfer of heat without matter to carry it.

a)

Conduction

b)

Convection

c)

Radiation

5.

•Heat moves naturally from an object with ..............temperature to one with .................. temperature.

a)

Higher to lower

b)

Lower to higher

6.

•Heat can move between objects in three ways

convection, conduction, and radiation

a)

True

b)

False

7.

How does heat move in this picture?

a)

Convection

b)

Conduction

c)

Radiation

8.

How does heat move in this picture?

a)

Convection

b)

Conduction

c)

Radiation

9.

How does heat move in this picture?

a)

Convection

b)

Conducion

c)

Radiation

10.

Heat is a form of _____________.

a)

cycle

b)

energy

c)

diversity

11.

________________ is to measure how hot or how cold something is.

a)

tempreture

b)

temparature

c)

temperature

12.

Heat always travels from _______________________________.

a)

a colder place to a hotter place until both places reach the same temperature.

b)

a hotter place to a colder place until both places reach the same temperature.

13.

Metals are ____________ conductor of heat.

a)

best

b)

good

c)

better

14.

Plastic is a _____________ conductor of heat.

a)

poor

b)

bad

15.

Which of these is a better insulator?

(insulator = poor conductor)

a)
b)
16.

Which of these is a better conductor?

a)
b)
17.
A circuit that has more than one path for electricity to follow is a...
a)
series
b)
static
c)
broken
d)
parallel
18.
When a switch is turned on, you close a circuit so that it is___________.
a)
incomplete
b)
inactive
c)
complete
d)
broken
19.
The only charges that can move from one object to another are___________ charges.
a)
electric
b)
neutral
c)
positive
d)
negative
20.
I allow electricity to run through me easily.
a)
fuse
b)
conductor
c)
insulator
d)
electric circuit
21.
I am the path along which electricity travels.
a)
electric circuit
b)
conductor
c)
insulator
d)
fuse
22.
Copper is a good conductor of electricity.
a)
true
b)
false
23.
If you take one light bulb out of a parallel circuit, all the lights will go out.
a)
true
b)
false
24.
Rubber is a good insulator.
a)

true

b)
false
25.
In an incomplete circuit, the light bulb would be lit.
a)
true
b)
false
26.
The flow of electricity in a circuit-
a)
current
b)
flow
c)
circuit
27.
____________ allows electricity to flow.
a)
A conductor
b)
An insulator
c)
A magnet
28.
____________ stops the flow of electricity.
a)
A conductor
b)
An insulator
c)
A magnet
29.
When the switch is closed, the light
a)
comes on
b)
stays off
c)
burns out
30.
Two types of circuits are
a)
parallel and magnetic
b)
electromagnetic and series
c)
series and parallel
31.
The flow of electricity requires a
a)
complete path
b)
incomplete path
c)
insulated current
32.
Current electricity flows through
a)
wires
b)
string
c)
rubber
d)
plastic
33.
The circuit on the left is
a)
open
b)
closed
34.
The image on the left is a 
a)
series circuit
b)
parallel circuit
c)
a weird circuit
35.
What supplies the energy in an electric circuit?
a)
light bulb
b)
conductor
c)
wire
d)
battery
36.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
37.

An electrical component used to open or close an electric circuit is ....

a)

wires

b)

lamp

c)

bulb

d)

switch

38.

In an electrical wire, the copper core is a ........................... and the two plastic covers are ............................. (ANS form: A, B)

(a)  

39.
How does sound travel?
a)
in only one direction
b)
in waves
c)
it doesn't travel
40.
What causes sound?
a)
when the pitch is high
b)
when something vibrates
c)
when the volume is loud
41.

Regions of air that have fewer particles are called _____________.

a)

speed

b)

rarefactions

c)

motion

d)

compressions

42.

Regions of air that many particles are called _____________.

a)

speed

b)

rarefactions

c)

motion

d)

compressions

43.

Which of the following electromagnetic waves has the highest frequency?

a)

microwaves

b)

infra-red

c)

radio waves

d)

gamma rays

44.

_____________________ is a form of energy carried by waves through matter.

a)

Light

b)

force

c)

sound

d)

pressure

45.

The wavelength of which electromagnetic wave is between those of radio waves and infra-red waves?

a)

Ultra violet

b)

microwaves

c)

X rays

d)

gamma rays

46.

A sound wave is produced when an object ____________________.

a)

accelerates

b)

remains stationary

c)

vibrates

d)

None of the above

47.

Which form of energy travels through matter but not through space?

a)

sound energy

b)

light energy

c)

potential energy

d)

None of the above

48.

The light we see is just a tiny part of the ___________________.

a)

electromagnetic spectrum

b)

kinetic energy

c)

vibration

d)

potential energy

49.

Sound travels the fastest through a ____________.

a)

solid

b)

liquid

c)

gas

d)

none of them

50.

The back and forth motion

a)

pitch

b)

amplitude

c)

vibration

51.

A form of energy that allows you to see objects is ______.

a)

sound

b)

light

c)

chemical

d)

thermal

52.

Soundwaves travel through a substance called a

a)

tranverse

b)

medium

c)

beginning

53.

This turns light energy into electricity

a)

light panels

b)

thermal energy

c)

windmills

d)

solar cells

54.

Which is the fastest form or energy

a)

sound

b)

light

c)

thermal

d)

nuclear

55.

Astronauts in space cannot talk to each other unless they use a radio to speak back and forth. Why is this?

a)

The air is too thick to carry sound waves efficiently.

b)

The force of gravity is too strong to allow sound waves to travel.

c)

There is no air in space, so there is no medium to carry sound waves.

d)

It is very loud in space, so they can only hear each other through a radio.

56.

The different forms of radiations all together are known as

a)

electrons

b)

electromagnetic spectrum

c)

lidar

d)

solar panels

57.

Light is made up of only one color.

a)

True

b)

False

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