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Devices and Energy concept 3.1

Total questions: 80

Worksheet time: 50mins

Name
Class
Date
1.
Toy cars need energy to do all the following functions except…..
a)
a. moving forward and backward
b)
b. rotation in a circle
c)
c. moving right and left
d)
d. rotation around the moon
2.
In the battery of a toy car ….energy is converted into electrical energy
a)
a. chemical
b)
b. sound
c)
c. light
d)
d. thermal
3.
Electrical energy produced from a toy car battery can be converted into …..,…..and …..energies
a)
a. mechanical-sound-solar
b)
b. mechanical -thermal-solar
c)
c. mechanical - sound -thermal
d)
d. sound - thermal - solar
4.
The energy source in a toy car is the ……….
a)
a. engine
b)
b. battery
c)
c. tires
d)
d. fuel
5.
It takes several ……..for a spacecraft to travel from Earth to mars
a)
a. seconds
b)
b. minutes
c)
c. days
d)
d. months
6.
Curiosity rover is designed to explore…….
a)
Earth
b)
Mars
c)
the Sun
d)
the moon
7.
In the hair dryer, the electrical energy is converted into……..,…..and………energies
a)
a. sound-thermal-kinetic
b)
b. kinetic - light-chemical
c)
c. thermal-light-chemical
d)
d. light-sound-electric
8.
In the washing machine, the …...energy is converted into kinetic and sound energies.
a)
light
b)
electrical
c)
thermal
d)
potential
9.
You feel warm when you rub your hand together , because ……energy is sonverted into thermal energy
a)
kinetic
b)
light
c)
sound
d)
electrical
10.
Plants can convert the light energy from the sun into……energy which is stored in the plant in the formof sugar
a)
a. sound
b)
b. electrical
c)
c. chemical
d)
d. kinetic
11.
When you eat an apple,your body converts the…..energy stored in the apples into ………..energy when you move
a)
a. chemical-electrical
b)
b. kinetic-chemical
c)
c. electrical-chemical
d)
d. chemical-kinetic
12.
Electric wires are made of ……
a)
a. copper
b)
b. paper
c)
c. glass
d)
d. wood
13.
Which form of energy is not used or produced when you turn on an electric bulb?..
a)
a. Electrical
b)
b. Light
c)
c. Thermal
d)
d. Sound
14.
Which sentence shows the correct order of energy changes in a flashlight?
a)
a. chemical-->electrical-->light
b)
b. chemical-->light-->electrical
c)
c. Electrical-->chemical-->light
d)
d. Light-->chemical-->electrical
15.
When you use the hand bell,the…energy is converted into sound energy
a)
a. light
b)
b. thermal
c)
c. kinetic
d)
d. electric
16.
In the electric water kettle,electrical energy is converted into……energy that can warm the cold water inside it.
a)
a. sound
b)
b. thermal
c)
c. light
d)
d. kinetic
17.
If the ……energy doesn't go through the electric fan's wire ,it will not turn on.
a)
a. sound
b)
b. electrical
c)
c. kinetic
d)
d. thermal
18.
While playing a guitar,…..energy is converted into sound energy
a)
kinetic
b)
light
c)
chemical
d)
potential
19.
Inside a light bulb, electrical energy is converted into ……..and ………energies
a)
a. sound-light
b)
b. sound-thermal
c)
c. kinetic-light
d)
d. light-thermal
20.
Both the hair dryer and the electric water kettle produce…….energy
a)
a. chemical
b)
b. thermal
c)
c. light
d)
d. potential
21.
When you turn on the light bulb, the electric energy travels through……..until reaching the bulb.
a)
a. wires
b)
b. glass
c)
c. wood
d)
d. plastic
22.
Some kinetic energy is converted into …..energy due to friction of bike's tire with the road.
a)
a. light
b)
b. electrical
c)
c. potential
d)
d. thermal
23.
The input energy when using the hair dryer is the …….energy
a)
a. electrical
b)
b. potential
c)
c. kinetic
d)
d. thermal
24.
Which form of energy is not an output energy when a hair dryer is used?..
a)
Kinetic energy
b)
Electrical energy
c)
Thermal energy
d)
Sound energy
25.
During charging a mobile phone,the …energy is converted into ……energy that stored in the phone battery
a)
electrical-chemical
b)
thermal-chemical
c)
chemical-thermal
d)
electrical-thermal
26.
Sound and ……energies are output energies when operating the mobile phone.
a)
a. electrical
b)
b. potential
c)
c. chemical
d)
d. light
27.
The output energy when playing drums is …..the energy
a)
a. chemical
b)
b. light
c)
c. sound
d)
d. potential
28.
Whena piece of coal is burned,……energy is produced
a)
a. thermal
b)
b. solar
c)
c. sound
d)
d. potential
29.
The produced ……….energy does not help the blender to do its job.
a)
chemical
b)
light
c)
sound
d)
potential
30.
When football player runs, the chemical energy inside his body is converted into…..and……..energies
a)
potential-light
b)
kinetic-light
c)
thermal-kinetic
d)
thermal-light
31.
energy cannot be transformed from one form to another
a)
Right
b)
Wrong
32.
We can convert the solar energy into different forms of energy
a)
Right
b)
Wrong
33.
A toy car can continue moving even after its battery runs out
a)
Right
b)
Wrong
34.
Curiosity is a vehicle that travels across the surface of the planet mars
a)
Right
b)
Wrong
35.
Mars is located a few meters away from the Earth
a)
Right
b)
Wrong
36.
Without electrical energy,Mars rover Curiosity cannot move or commuinicate with Earth
a)
Right
b)
Wrong
37.
In the soap dispenser, potential energy is converted into kinetic energy
a)
Right
b)
Wrong
38.
In the electric blender,sound energy is converted into electrical energy and kinetic energy
a)
Right
b)
Wrong
39.
Most of energy chains starts with the moon
a)
Right
b)
Wrong
40.
Light energy from the sun helps trees to grow
a)
Right
b)
Wrong
41.
Both the hair dryer and the washing machine depend on the same kind of energy to operate
a)
Right
b)
Wrong
42.
In electric power stations,sound energy produced from burning of coal is converted into electrical energy
a)
Right
b)
Wrong
43.
The electric bulb depends on chemical energy to operate
a)
Right
b)
Wrong
44.
There is energy waste when energy is transformed from one form to another
a)
Right
b)
Wrong
45.
Energy can destroyed inside some devices
a)
Right
b)
Wrong
46.
Both the electric bulb and the electric heater produce thermal energy
a)
Right
b)
Wrong
47.
There is a stored chemical energy inside the food we eat
a)
Right
b)
Wrong
48.
As a result of friction between bike's tire and the road , kinetic energy is converted into chemical energy
a)
Right
b)
Wrong
49.
When pedalling a bike,the chemical energy in your body is converted into kinetic energy
a)
Right
b)
Wrong
50.
Energy can't be changed from one form to another
a)
Right
b)
Wrong
51.
Energy may be destroyed inside different devices
a)
Right
b)
Wrong
52.
Some of the converted energy does not help some devices do the function to which is designed
a)
Right
b)
Wrong
53.
The produced sound energy helps the hair dryer to do its function
a)
Right
b)
Wrong
54.
In waterfalls, the water that falls down has kinetic energy
a)
Right
b)
Wrong
55.
The input energy in a hair dryer is the chemical energy
a)
Right
b)
Wrong
56.
The energy chain of burning wood is : chemical energy converted to thermal energy and light energy
a)
Right
b)
Wrong
57.

The energy input to operate fan is ...................... energy

a)

Electric

b)

Kinetic

c)

Sound

d)

Heat

58.

The energy output from washing machine is .................... energy

a)

Light

b)

Kinetic

c)

Electric

d)

magnetic

59.

Energy chains start with .....................

a)

Sun

b)

Plants

c)

Water

60.

Green plants change light energy coming from the Sun to ..................... energy

a)

Sound

b)

Light

c)

Magnetic

d)

Chemical

61.

When we burn wood .................. energy is produced

a)

Heat

b)

Chemical

c)

Sound

62.

In hair dryer , Chemical energy changes into Heat & Sound energies

a)

True

b)

False

63.

We can use ................... to operate robots that discover other planets

a)

Solar energy

b)

Long last batteries

c)

Electric energy

d)

Solar energy & Long last batteries

64.

Energy output in soap dispenser is ................ energy

a)

Kinetic

b)

Electric

c)

Light

d)

Heat

65.

The produce energy in the electric lamp

is

a)

Only heat

b)

Kinetic energy

c)

Heat and light

66.

Energy can create and change from one

from to another

a)

True

b)

False

67.

The energy used in the heater is

a)

Kinetic energy

b)

Electric energy

c)

Heat energy

68.

7. Which form of energy is not used or produced when you turn on an electric

bulb?

a)

a. Electrical.

b)

b. Light.

c)

c. Thermal.

d)

d. Sound.

69.

most wasted energy in electric devices in form of ......................

a)

sound

b)

heat

c)

light

d)

mechanical

70.

How is the electrical system similar to the simple solar panel system you built in class?

(select 3 answers)

a)

Both have a converter to convert the energy from the energy source into electrical energy

b)

Both are connected to multiple electrical devices

c)

both have devices that are running on electrical energy

d)

both have wires connecting the parts of the systems and transferring energy throughout the systems

e)

both rely on wind energy to be converted into electrical energy

71.

What form of energy comes from a battery operated device?

a)

electrical

b)

motion

c)

thermal

d)

chemical

72.

Which statement is NOT true about a battery operated flashlight?

a)

The flashlight converts chemical energy into light energy

b)

The flashlight uses light energy to produce chemical energy

c)

The flashlight produces both light and thermal energy

d)

The flashlight produces light energy by converting chemical energy from the battery

73.

If the flashlight stopped working, what would be the best explanation and solution to the problem?

a)

The flashlight ran out of light energy and needs to be rewired

b)

The flashlight must be connected to a solar panel so that it has light energy to function

c)

The flashlight needs thermal energy to work so the batteries need to be changed

d)

The flashlight ran out of the chemical energy it was converting from the batteries, so the batteries need to be changed

74.

Where does energy in an electrical system come from?

a)

energy source

b)

electrical grid

c)

source converter

d)

device converter

75.

Which is NOT a source of energy?

a)

Fossil fuels

b)

Sun

c)

Sound

d)

Wind

76.

Which form of energy cooks a pizza?

a)

motion

b)

thermal

c)

chemical

d)

light

77.

Which of the following explains the relationship between the parts in a system?

(select 2 answers)

a)

the parts in a system can be arranged in any order and the system will always function correctly

b)

a system is a collection of interacting parts that work together

c)

each part in the system plays a role in the system's overall function

d)

a system is made of parts that can work together but do not have to work together

78.

What is energy?

a)

to change from one form to another

b)

what something can do

c)

to move something from one place to another

d)

the ability to do work, make things move or change

79.

What part of the electrical system transfers energy from one place to another?

a)

wires

b)

device converter

c)

energy source

d)

electrical device

80.

Which of the following is NOT a reason that would cause a system to fail? 

A

a)

A part of the system is missing

b)

The parts of the system are in a different order

c)

The parts of a system are in the wrong order

d)

A part of the system is broken

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