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WorksheetsEnergy P4
Total questions: 70
Worksheet time: 55mins
The correct energy transformation in the activity above is ....
kinetic energy to electrical energy
electrical energy to magnetic energy
gravitational potential energy to electric energy
elastic potential energy to kinetic energy
The correct meaning of energy is ....
an amount of vibration in one second
the amount of force exerted per area
an ability to do work
a push or pull upon an object
I am the main source of energy on earth. I give heat and light for the earth. Plants need
me to grow well. I am ....
sun
food
sound
electricity
The following statement that shows the correct way to save electrical energy is shown in....
Plant green plants in the forest
turn off the lights when they are not in use
turn off the water tap when it is not in use
use public transportation rather than private vehicles
Identify the energy changes in the picture?
A. Movement energy changes to sound energy.
B. Electrical energy changes to sound, light
and heat energy
C. Heat energy changes to movement energy.
D. Electrical energy changes to heat energy.
Which of the following statements about energy is correct?
Energy can be lost.
Energy can be transferred.
Energy can be created.
Energy can be used up.
Which of the following allows plant to make food/photosynthesize?
Which form of energy is produced when a guitar string vibrates?
Sound energy
Electrical energy
Chemical energy
Light energy
Which form of energy is produced when a lamp is switched on?
Sound energy
Electrical energy
Chemical energy
Light energy
What is the form of energy that allows you to see the things around you?
Heat
Sound
Light
Air
What kind of energy keeps people warm?
Sound energy
Moon energy
Muscle energy
Heat energy
Batteries store energy as chemical energy.
True
False
Mr. Picha came home after a long day at school. It was so late that it was already dark outside. Nobody was home and so Mr. Picha flipped a light switch to turn on some lights. What energy transfer is taking place?
electrical to light
electrical to chemical
light to electrical
electrical to mechanical
The example of stored energy is _______
The chemical is transformed into ________inside the battery.
movement energy
electrical energy
heat energy
light energy
A microwave has ________energy then its transfers to _____energy to ______ energy, to ______energy and ______ energy
stored energy - movement energy - light energy - sound energy
stored energy - chemical energy - light energy - sound energy
stored energy - electrical energy - movement energy - light energy - heat energy
stored energy - sound energy and light energy
Mahmud went to gas station by his car, so its had _____energy. When the car was going to the gas station, so its transfered to ______ energy
chemical energy - movement energy
electrical energy - chemical energy
chemical energy - stored energy
stored energy - chemical energy
What sound energy can be used for ?
to play music and transport people
to communicate and play music
to make a warm and play music
to dry cloth and melt metal
When energy is changed from one form to another.
Motion
Energy Conversion
Heat Energy
Function
What is the energy conversion when you burn wood for a fire?
Electrical energy to Heat energy
Heat energy to Sound energy
Heat energy to Light energy
Chemical Potential energy to Heat Energy
What is the energy conversion when you put batteries in a flashlight to make it turn on?
Chemical Potential energy to Heat energy
Heat energy to Light energy
Chemical Potential energy to Light Energy
Kinetic energy to Light energy
When a candle is lit. State the energy conversion that happen!
Electrical energy -> Heat energy + Potential energy
Heat energy -> Light energy + Kinetic energy
Chemical Potential energy -> Heat energy + Light energy
Chemical Potential energy -> Light energy + Electrical energy
The examples of elastic energy.
_______ energy is stored energy.
Potential
Kinetic
Light
Sound
Identify the type of energy
Electrical energy
Thermal energy
Sound energy
Ryan rubs two sticks together quickly. When he stops rubbing the sticks, he notices that they are warm to touch where he rubbed them. Which type of energy has been produced?
sound energy
heat energy
light energy
What kind of energy is this?
Gravitational potential energy
Elastic potential energy
Potential energy
None of the above
What kind of energy is represented in the picture?
Heat
Chemical
Sound
Kinetic
A car driving involves multiple energy transformations. The wasted energy is
Heat
Sound
Light
Chemical potential
Which object shows an energy transformation from electrical to heat energy?
What energy transformations take place when a battery-operated radio is in use?
Electrical to chemical to light
Sound to chemical to mechanical(kinetic)
Chemical to electrical to sound
Light to electrical to heat
Which energy conversion is taking place when you put gasoline in a car?
heat -> electrical
kinetic -> electrical
chemical -> mechanical(kinetic)
Kinetic-> light
What types of energy does the toy oven use to bake the cakes?
Light and sound
Electrical and thermal
Thermal and mechanical
Mechanical and electrical
Solar energy is transferred to _____ energy.
Mechanical
Solar
Sound
Electrical
Light travels in ___________ line
reflected
irregular
wavy
straight
We are able to see the moon because it ____________
gives out light
glows
reflects light from the sun
reflects light from the earth
Shadow is formed when light is _________ by an object.
blocked
lessened
divided
fromed
We are able to see objects because they ____________ light into our eyes.
reflect
refract
shine
defract
Light is able to pass through __________________ materials
transparent
shiny
dull
opaque
Light is unable to pass through ________________ objects
opaque
coloured
blunt
dark
When an object is placed ____________ the light source, the shadow formed on the screen is ____________ the object.
closer to, smaller than
closer to, bigger than
far from, the same size as
far from, bigger than
__________ objects cast dark shadows.
Transparent
Translucent
Opaque
Rough
Which of these object can cast shadow:
Pen, air, rock, glass, chair
Pen, rock and chair.
Air, pen and rock
Chair, air, glass
Glass, pen and rock
Look at the picture. How does light travel?
Light travels in a straight path.
Light travels in a zig zag path.
Light does not move.
Light travels in a wavy path.
Look at the set up above. Cindy saw the object when she was asked to stand at position X.
What was the smallest number of mirrors Cindy required to see the object.
3
4
5
8
Ryan is in his house and looking outside at the garden as shown below.
Which of the following best explains why Ryan is able to see the garden?
The glass reflects the light
The light that falls on the garden is reflected
The glass does not allow the light to pass through
The light from Ryan's eyes falls onto the garden
The boy is able to see the ball. Which of the following correctly shows the path of light that makes it possible for the boy to see the ball?
from basketball to lamp to boy
from boy to lamp to basketball
from lamp to ball to basketball
from lamp to basketball to boy
Based on the picture above, what materials are used to make block A and block B?
Block A: wood; Block B : clear glass
Block A: clear glass; Block B :wood
Block A: frosted glass; Block B :wood
Block A: wood; Block B :frosted glass
How can you make the shadow of the ball bigger on the screen?
Move the ball nearer to the screen
Move the screen nearer to the ball
Move the light source further from the ball
Move the lamp nearer to the ball
Which of the following correctly shows the four materials arranged from the most transparent to the least transparent?
Y, X, Z, W
W, X, Z, Y
W, Z, X, Y
Y, Z, X, W
Which of the following correctly shows the path of light when it passes through a clear flat glass?
What type of diagram has Sameer drawn?
Choose the correct answer.
Energy diagram
Light diagram
MIrror diagram
Ray diagram
Class 6 investigate light.
A hole is cut in a box.
A flashlight is put inside the box.
Different materials are put over the hole in the box.
Why do we see light from the flashlight?
Circle the correct answer.
light goes into the flashlight
light is reflected by our eyes
Light goes into our eyes
light is reflected by the flashlight
Azam draws a picture.
He uses the picture to explain how he sees a book.
Complete the sentences.
The llamp produce the ___________ of light
line
reflects
arrows
rays
What type of eclipse is in the diagram below?
Lunar Eclipse
Partial Eclipse
Solar Eclipse
Total Eclipse
What type of eclipse is in the diagram below?
Lunar Eclipse
Partial Eclipse
Solar Eclipse
Total Eclipse
In the diagram below, letter A represents the _____________________.
penumbra
umbra
In the diagram below, letter B represents the _____________________.
penumbra
umbra
Number one in the diagram, is pointing to what part of the Earth's Shadow?
umbra
penumbra
Number two in the diagram, is pointing to what part of the Earth's Shadow?
umbra
penumbra
What happens when light hits a mirror?
It refracts
It absorbs
It reflects
It disappears
What happens when light hits a shiny or smooth surface?
It disappears.
It is refracted.
It is absorbed.
It is reflected.
The following diagram shows a driver who could see the image of a vehicle behind him without turning his back.
Why?
Light travels in a straight line
Light is refracted
Light is reflected
Light travels in two different mediums
