WorksheetsForce_P3
Total questions: 60
Worksheet time: 53mins
Frictional force depends on ____
surface area in contact
roughness of surface
both a and b
none of the above
Which two of these forces act on parachutes?
Air Resistance
Gravity
Thrust
Kinetic Energy
What causes an object to fall faster?
Smaller surface area
Larger surface area
If it has a parachute
If it is softer
The larger the surface area of the moving object, the ___________ air resistance there is.
Less
More
Longer
Quicker
Air resistance pushes against falling
objects and __________________.
Speeds them up
Keeps them afloat
Slows them down
Spins them
The more streamlined an object is, the...
More air resistance
Less air resistance
Slower air resistance
Faster air resistance
What force slows down moving things?
Position
Friction
Magnetism
Sliding
Gravity _____
PULLS on objects
PUSHES on objects
is only on EARTH
An object's gravity depends on the SIZE of the object.
True
False
True or False: The sun's gravity is powerful enough to pull on all the planets in the solar system.
True
False
Earth's gravity pulls everything and everybody toward ____________.
Mars
your school
your home
Earth
If you can see light through an object it is called...
opaque
plastic
transparent
An opaque object means that ...
light passes through
no light passes through
some light passes through
you can see through it
Clear glass is an example of?
Translucent object
Opaque object
Transparent object
All of the above
See the diagram and tell what type of material is used?
Opaque
Translucent
Mirror
Transparent
Shadows come in different __________ and ____________
shapes
colors
sizes
Which is NOT a source of light?
Firefly
Ball
Sun
Torch
shadow is formed on the ____________ side of light source
left
front
right
opposite
Is the position of the tree's shadow correct?
Yes
No
Is the position of the tree's shadow correct?
Yes
No
A shadow is created when...
an object blocks the light
an object lets light pass thru
an object is above light
If we moves object closer to the source of light.
What happens to the size of the shadow?
increase
decrease
stay at the same
Shadows are formed because light travels in straight lines
true
false
Rara and Nusa investigate shadows. The picture shows the equipment they use.
Rara and Nusa :
• place a large sheet of white paper on the ground
• put a post at one end of the paper
• measure the length of the shadow at different times of the day.
The post makes a shadow. Why does the post make a shadow?
Tick () the correct box.
the post is heavy
the post is tall
the post is opaque
the post is transparent
Aisyah investigates shadows. She makes different animal shapes and puts them on sticks.
Complete the sentences to describe how the animal shadows are formed.
Animal shadows are made when light from a source is ………….……………
blocked
absorbed
translucent
transparent
Blessy’s head makes a shadow on a screen.
Blessy moves towards the light source.
What happens to the size of the shadow of Blessy’s head?
getting bigger
getting smaller
stay the same
Umar switches on a lamp.
Which letter on the diagram shows where his shadow will
be?
E
B
C
D
Firman and Fitrah investigate shadows.
They :
• place a large sheet of white paper on the ground
• put a post at one end of the paper
• measure the length of the shadow at different times of the day.
Here are their result.
Firman and Fitrah did not record a length for 13:00. Predict the length of the shadow at 13:00.
105
111
119
126
Shakira is singing on a stage. There are five spotlights above the stage. Each spotlight is turned on one at a time. Which spotlight produces the longest shadow? Circle the correct answer.
A
B
C
D
E
Zakaria draws a diagram to show how shadows are made. Describe what Zakaria does to make the shadow bigger?
Choose 2 correct answers!
move the object away from the light
move the object closer to the light
move the screen away from from the object
move the screen ckoser to the object
Class 3 investigate light.
- a hole is cut in a box.
- a flashlight (torch) is put inside the box.
- different materials are put over the hole in the box.
Predict what will happen if the material is translucent. Complete the sentence.
If the material is translucent I predict ......................
the light can pass through it
only some light can pass through it
the light can not pass through it
Which material is opaque?
water
wood
glass
ice
Jamila and Safia investigate how the length of a shadow changes. They place a stick in the ground.
They measure the length of the shadow of the stick.
Safia says ‘The shadow will be shortest at 12:00.’
What is this statement?
Circle the correct answer.
conclusion
data
evidence
prediction
result
The strongest parts of the magnet are their ....
fronts
backs
poles
middle
Bar magnets have two poles. What are they?
north and south
red and blue
east and west
red and green
The area around a magnet is called the .....
attraction zone
work area
magnetic field
hot zone
Like poles __________ each other while unlike poles ___________ each other.
attract, repel
repel, attract
oppose, connect
connect, oppose
Jordan places four ring magnets A, B, C and D onto a wooden stand as shown.
If he wants the four ring magnets to be attracted to each other, which magnet A, B, C or D should he flip?
A
B
C
D
The diagram shows what happens when bars X and Y are brought near to each other.
Which one of the following statements is correct?
X is a magnet but Y is a magnetic material.
Both X and Y are magnets.
X is made of aluminium but Y is made of iron.
Both X and Y are made of non-magnetic materials.
What does repel mean?
magnets move toward each other
magnets do not have magnetism
magnets move away from each other
magnets stick together
Bob placed Magnet X on Car 1 and Object Y on Car 2 as shown. He observed that the cars moved away from each other when they were placed near each other.
Which of the following statement(s) about Object Y is/are correct?
A: Object Y is a non-magnetic material.
B: Object Y is a magnetic material.
C: Object Y is a magnet.
A only
C only
A and B only
A and C only
Magnet can attracts ....
Some metallic materials are magnetic and some are not. The following are made of metallic materials. Which one is magnetic?
aluminum
steel
tin
copper
Magnetism is _____.
a force that pulls metals towards a magnet
when you look at a magnet
a force that eats magnets
A force that slows or stops motion when objects rub together
Push or pull
Magnetism
Force
Friction
What is the name of force caused when two surfaces rub together?
Friction
Gravity
Magnetic
What is the name of force caused by air pushing against moving objects?
Friction
Air resistance
Gravity
A parachute uses ....................... to work /in air/
Air resistance
Gravity
Friction
The gravitational force between Earth and the Sun causes ______.
Earth to orbit the Moon
Earth to orbit the Sun
Earth's atmosphere
the Moon to orbit Earth
What do the red arrows symbolize?
The direction in which you would fall off of Earth.
The pull of Earth's gravity on objects to the center of the Earth.
The pull of the Moon's gravity on objects to the center of the Earth.
Where different continents are.
