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WorksheetsGrade 4 Energy: Non-contact forces Unit review
Total questions: 71
Worksheet time: 6hrs 42mins
Which of the following is an example of a non-contact force?
Friction
Gravity
Muscle force
Tension
What scientific figure is associated with the laws of motion and is mentioned in the unit?
Albert Einstein
Charles Darwin
Sir Isaac Newton
Nikola Tesla
Which activity would help students understand the concept of magnetic fields?
Experiment – egg drop test
Activity – will the magnets attract or repel?
Experiment – bending water
Coding activity – hard drives and binary code
What is one of the harmful effects of magnets that is covered in the unit?
Harmful effects of static electricity
Dangers of static electricity
Research activity – Sir Isaac Newton
Experiment – magnetizing a nail
Which of the following topics is NOT explicitly listed in the table of contents for the Alberta Science 2023 Curriculum – Grade 4 – Energy: Non-Contact Forces Unit?
How a compass works – magnetic field
Devices that use non-contact forces
Experiment – testing the force of gravity
Experiment – creating a vacuum
What are non-contact forces?
Forces that require objects to be touching
Forces that occur between objects that are not in direct contact
Forces that can only act through materials
Forces that are weakest at the magnetic poles
Which of the following is a non-contact force that pulls objects toward the ground?
Magnetic force
Friction
Gravity
Electric force
What do magnetic materials contain?
Aluminum, copper, or zinc
Iron, cobalt, or nickel
Carbon, silicon, or phosphorus
Oxygen, hydrogen, or nitrogen
What happens to the strength of non-contact forces as objects get farther apart?
It increases
It fluctuates
It stays the same
It decreases
What is true about magnetic poles?
Like magnetic poles attract each other
Magnetic force is weakest at the magnetic poles
Opposite magnetic poles attract each other
Magnets have only one magnetic pole
How can some materials become magnetized?
By cooling them to extremely low temperatures
By interacting with a magnet
By applying a strong electric current
By painting them with metallic paint
What is a contact force?
A force that operates without physical contact
A force that occurs between objects in physical contact
The force of gravity between two masses
A force related to magnetic fields
Which of the following is a non-contact force?
Friction
Tension
Gravity
Normal force
What is gravity?
The force that repels two objects with the same charge
The force that keeps planets in orbit around the sun
The force that two objects exert on each other because of their mass
The force that causes magnets to stick to the fridge
What does magnetism refer to?
The force exerted by muscles
The force of attraction or repulsion between electric charges
The force of attraction or repulsion between objects due to their electric charge
The force of attraction or repulsion between objects due to their magnetic properties
What is electrostatic force?
The force between two objects caused by friction
The force between two objects caused by their magnetic fields
The force between two charged objects
The force between two objects due to gravity
What does it mean to attract?
To push away or repel
To pull towards or cause to approach
To increase the distance between two objects
To decrease the mass of an object
What does it mean to repel?
To pull objects towards each other
To cause a chemical reaction
To push away or drive back
To increase the gravitational force between objects
What is a force?
A type of energy that is stored in objects
A push or pull that causes an object to move
The speed at which an object moves
A measure of how heavy an object is
Which of the following is an example of a pushing force?
Lifting a bag
Opening a drawer
A child being pushed on a swing
Playing tug of war
What is an example of a pulling force?
Pushing a book across a desk
A child swinging on a swing without being pushed
Two teams playing tug of war
A ball rolling down a hill
What type of force is involved when shooting a basketball into the net?
Push
Pull
Gravity
Friction
Which of the following is an example of a pull force?
Kicking a ball
Climbing a rope
Shooting a basketball
Plugging in a cord to an outlet
What type of force does a tow-truck use to move a car behind it?
Push
Pull
Lift
Drop
What action is being performed by the person with the shopping cart?
Push
Pull
Lift
Drop
What action is the donkey doing with the cart?
Push
Pull
Carry
Kick
What action is being performed by the person with the lawn mower?
Push
Pull
Ride
Throw
What action is being performed by the person with the bow and arrow?
Push
Pull
Throw
Catch
What action is being performed by the person with the sled?
Push
Pull
Slide
Roll
What action is being performed by the soccer player?
Push
Pull
Kick
Catch
What action is being performed by the person climbing the tree?
Push
Pull
Climb
Jump
What action is being performed by the basketball player?
Push
Pull
Dribble
Shoot
What action is being performed by the person playing the xylophone?
Push
Pull
Strike
Shake
What action is being performed by the person doing pull-ups?
Push
Pull
Lift
Hang
What action is being performed by the person fishing?
Push
Pull
Cast
Reel
What type of force is the girl applying to the leash in the first image?
She is pulling the leash.
She is pushing the leash.
She is cutting the leash.
She is tying the leash.
In the second image, what type of force is the child in the blue shirt applying to the swing?
The child is pulling the swing.
The child is pushing the swing.
The child is lifting the swing.
The child is spinning the swing.
What is a force in the context of physics?
A push or a pull that stops the movement of an object.
A push or a pull that causes the movement of an object.
A type of energy that can only pull objects.
A natural phenomenon that only occurs in space.
Which of the following is an example of a non-contact force?
Kicking a soccer ball.
A magnet pulling an object towards it.
A person pushing a shopping cart.
A tree branch moved by the wind.
What is the most common non-contact force that affects us on Earth?
Electrostatic force.
Magnetic force.
Gravitational force.
Spring force.
Which of the following scenarios describes a contact force?
Static electricity causing hair to stand on a trampoline.
The Earth's gravity pulling an apple towards the ground.
The wind moving a tree branch.
A magnetic force attracting a paperclip.
What is an example of electric forces being non-contact?
A battery providing power to a remote control.
A light bulb being turned on by a switch.
Static electricity making your hair move on a trampoline without touching it.
Plugging in a device to charge it.
What type of force is involved when leaves are falling from a tree?
Contact Force
Non-Contact Force
Magnetic Force
Frictional Force
Which of the following is an example of a contact force?
Gravity acting on a falling apple
A magnet pulling a paperclip towards it
A baseball being hit by a bat
The Earth orbiting the sun
What type of force causes a magnet to attract nails without touching them?
Contact Force
Non-Contact Force
Gravitational Force
Applied Force
What is gravity?
The force that pushes objects away from the Earth
The force that pulls objects to the centre of the Earth
The force that allows objects to float in the air
The force that moves objects in a circular motion
Why would we float away if there was no gravity on Earth?
Because the Earth's surface is slippery
Because there would be no air resistance
Because there would be nothing pulling us towards the Earth's surface
Because the Earth would stop spinning
What happens to a ball when you throw it into the air?
It keeps going higher and higher
It comes back down due to gravity
It floats in the air
It orbits around the Earth
How does gravity affect our weight?
It determines the speed at which we move
It changes our height
It is how hard gravity is pulling us towards the Earth's surface
It measures the air pressure around us
If someone weighs 100 pounds on Earth, how much would they weigh on the moon?
100 pounds
16 pounds
50 pounds
200 pounds
What kind of force is gravity?
A contact force that requires two objects to touch
A force that only works during the day
A non-contact force that never stops
A temporary force that comes and goes
What is the primary goal of the egg drop experiment?
To demonstrate the principles of art and design
To create a contraption that will protect an egg from breaking when dropped from a certain height
To learn about the different types of materials like straws and paper cups
To practice cooking skills with eggs
What concepts does the egg drop experiment demonstrate?
Force, gravity, and Newton's Laws of Motion
Chemical reactions and molecular bonds
Photosynthesis and plant growth
The water cycle and evaporation
What is the force that tries to pull two objects together?
magnetism
friction
gravity
electricity
What kind of force acts at a distance?
contact force
non-contact force
friction
air resistance
The distance traveled in an amount of time is known as ________.
speed
acceleration
potential energy
friction
A force that requires two pieces of matter to touch is a ________.
gravity
non-contact force
contact force
magnetism
_______ is the force that results when two materials rub against each other or when their contact prevents sliding.
electricity
gravity
friction
magnetism
The force between the two people through the rope is
Contact Pull
Non-contact Pull
Contact Push
Non-contact Push
Gravity is a
Contact Force
Myth
Non-contact Force
The force between the phone and the mount is a
contact force
non-contact force
The three examples pictured are of
Non-contact Forces
Contact Forces
a force that attracts things to Earth.
gravity
force
inertia
motion
A non-contact force is between
two objects that aren't touching
two objects that are touching
the ground and wheels
you and me
Friction is a
Contact Force
Myth
Non-contact Force
Magnetic Force is an example of ____________ force.
contact
non-contact
balanced
unbalanced
What is the effect of friction on the motion of objects?
It speeds up the motion
It changes the direction of motion
It slows down or stops the motion
It has no effect on the motion
What does it mean to repel?
To pull towards or cause to approach
To push away or drive back
To increase the distance between two objects
To decrease the mass of an object
Which of the following is an example of a contact force?
The Earth's gravity pulling an apple towards the ground
A magnetic force attracting a paperclip
Static electricity causing hair to stand on a trampoline
A person pushing a car
