Quiz about Grade 4 Energy: Non-contact forces Unit review

Question 1

Which of the following is an example of a non-contact force?

Accepted Answer

Gravity

Answer

Friction

Answer

Muscle force

Answer

Tension

Question 2

What scientific figure is associated with the laws of motion and is mentioned in the unit?

Accepted Answer

Sir Isaac Newton

Answer

Albert Einstein

Answer

Charles Darwin

Answer

Nikola Tesla

Question 3

What are non-contact forces?

Accepted Answer

Forces that occur between objects that are not in direct contact

Answer

Forces that require objects to be touching

Answer

Forces that can only act through materials

Answer

Forces that are weakest at the magnetic poles

Question 4

Which of the following is a non-contact force that pulls objects toward the ground?

Accepted Answer

Gravity

Answer

Magnetic force

Answer

Friction

Answer

Electric force

Question 5

What do magnetic materials contain?

Accepted Answer

Iron, cobalt, or nickel

Answer

Aluminum, copper, or zinc

Answer

Carbon, silicon, or phosphorus

Answer

Oxygen, hydrogen, or nitrogen

Question 6

What happens to the strength of non-contact forces as objects get farther apart?

Accepted Answer

It decreases

Answer

It increases

Answer

It fluctuates

Answer

It stays the same

Question 7

What is true about magnetic poles?

Accepted Answer

Opposite magnetic poles attract each other

Answer

Like magnetic poles attract each other

Answer

Magnetic force is weakest at the magnetic poles

Answer

Magnets have only one magnetic pole

Question 8

How can some materials become magnetized?

Accepted Answer

By interacting with a magnet

Answer

By cooling them to extremely low temperatures

Answer

By applying a strong electric current

Answer

By painting them with metallic paint

Question 9

What is a contact force?

Accepted Answer

A force that occurs between objects in physical contact

Answer

A force that operates without physical contact

Answer

The force of gravity between two masses

Answer

A force related to magnetic fields

Question 10

Which of the following is a non-contact force?

Accepted Answer

Gravity

Answer

Friction

Answer

Tension

Answer

Normal force

Question 11

What is gravity?

Accepted Answer

The force that two objects exert on each other because of their mass

Answer

The force that repels two objects with the same charge

Answer

The force that keeps planets in orbit around the sun

Answer

The force that causes magnets to stick to the fridge

Question 12

What does magnetism refer to?

Accepted Answer

The force of attraction or repulsion between objects due to their magnetic properties

Answer

The force exerted by muscles

Answer

The force of attraction or repulsion between electric charges

Answer

The force of attraction or repulsion between objects due to their electric charge

Question 13

What is electrostatic force?

Accepted Answer

The force between two charged objects

Answer

The force between two objects caused by friction

Answer

The force between two objects caused by their magnetic fields

Answer

The force between two objects due to gravity

Question 14

What does it mean to attract?

Accepted Answer

To pull towards or cause to approach

Answer

To push away or repel

Answer

To increase the distance between two objects

Answer

To decrease the mass of an object

Question 15

What does it mean to repel?

Accepted Answer

To push away or drive back

Answer

To pull objects towards each other

Answer

To cause a chemical reaction

Answer

To increase the gravitational force between objects

Question 16

What is a force?

Accepted Answer

A push or pull that causes an object to move

Answer

A type of energy that is stored in objects

Answer

The speed at which an object moves

Answer

A measure of how heavy an object is

Question 17

Which of the following is an example of a pushing force?

Accepted Answer

A child being pushed on a swing

Answer

Lifting a bag

Answer

Opening a drawer

Answer

Playing tug of war

Question 18

What is an example of a pulling force?

Accepted Answer

Two teams playing tug of war

Answer

Pushing a book across a desk

Answer

A child swinging on a swing without being pushed

Answer

A ball rolling down a hill

Question 19

What type of force is involved when shooting a basketball into the net?

Accepted Answer

Push

Answer

Pull

Answer

Gravity

Answer

Friction

Question 20

Which of the following is an example of a pull force?

Accepted Answer

Climbing a rope

Answer

Kicking a ball

Answer

Shooting a basketball

Answer

Plugging in a cord to an outlet

Question 21

What type of force does a tow-truck use to move a car behind it?

Accepted Answer

Pull

Answer

Push

Answer

Lift

Answer

Drop

Question 22

What action is being performed by the person with the shopping cart?

Accepted Answer

Push

Answer

Pull

Answer

Lift

Answer

Drop

Question 23

What action is the donkey doing with the cart?

Accepted Answer

Pull

Answer

Push

Answer

Carry

Answer

Kick

Question 24

What action is being performed by the person with the lawn mower?

Accepted Answer

Push

Answer

Pull

Answer

Ride

Answer

Throw

Question 25

What action is being performed by the person with the bow and arrow?

Accepted Answer

Pull

Answer

Push

Answer

Throw

Answer

Catch

Question 26

What action is being performed by the person with the sled?

Accepted Answer

Pull

Answer

Push

Answer

Slide

Answer

Roll

Question 27

What action is being performed by the soccer player?

Accepted Answer

Push

Answer

Pull

Answer

Kick

Answer

Catch

Question 28

What action is being performed by the person climbing the tree?

Accepted Answer

Pull

Answer

Push

Answer

Climb

Answer

Jump

Question 29

What action is being performed by the basketball player?

Accepted Answer

Push

Answer

Pull

Answer

Dribble

Answer

Shoot

Question 30

What action is being performed by the person playing the xylophone?

Accepted Answer

Push

Answer

Pull

Answer

Strike

Answer

Shake

Question 31

What action is being performed by the person doing pull-ups?

Accepted Answer

Pull

Answer

Push

Answer

Lift

Answer

Hang

Question 32

What action is being performed by the person fishing?

Accepted Answer

Pull

Answer

Push

Answer

Cast

Answer

Reel

Question 33

What type of force is the girl applying to the leash in the first image?

Accepted Answer

She is pulling the leash.

Answer

She is pushing the leash.

Answer

She is cutting the leash.

Answer

She is tying the leash.

Question 34

In the second image, what type of force is the child in the blue shirt applying to the swing?

Accepted Answer

The child is pushing the swing.

Answer

The child is pulling the swing.

Answer

The child is lifting the swing.

Answer

The child is spinning the swing.

Question 35

What is a force in the context of physics?

Accepted Answer

A push or a pull that causes the movement of an object.

Answer

A push or a pull that stops the movement of an object.

Answer

A type of energy that can only pull objects.

Answer

A natural phenomenon that only occurs in space.

Question 36

Which of the following is an example of a non-contact force?

Accepted Answer

A magnet pulling an object towards it.

Answer

Kicking a soccer ball.

Answer

A person pushing a shopping cart.

Answer

A tree branch moved by the wind.

Question 37

What is the most common non-contact force that affects us on Earth?

Accepted Answer

Gravitational force.

Answer

Electrostatic force.

Answer

Magnetic force.

Answer

Spring force.

Question 38

Which of the following scenarios describes a contact force?

Accepted Answer

The wind moving a tree branch.

Answer

Static electricity causing hair to stand on a trampoline.

Answer

The Earth's gravity pulling an apple towards the ground.

Answer

A magnetic force attracting a paperclip.

Question 39

What is an example of electric forces being non-contact?

Accepted Answer

Static electricity making your hair move on a trampoline without touching it.

Answer

A battery providing power to a remote control.

Answer

A light bulb being turned on by a switch.

Answer

Plugging in a device to charge it.

Question 40

What type of force is involved when leaves are falling from a tree?

Accepted Answer

Non-Contact Force

Answer

Contact Force

Answer

Magnetic Force

Answer

Frictional Force

Question 41

Which of the following is an example of a contact force?

Accepted Answer

A baseball being hit by a bat

Answer

Gravity acting on a falling apple

Answer

A magnet pulling a paperclip towards it

Answer

The Earth orbiting the sun

Question 42

What type of force causes a magnet to attract nails without touching them?

Accepted Answer

Non-Contact Force

Answer

Contact Force

Answer

Gravitational Force

Answer

Applied Force

Question 43

What is gravity?

Accepted Answer

The force that pulls objects to the centre of the Earth

Answer

The force that pushes objects away from the Earth

Answer

The force that allows objects to float in the air

Answer

The force that moves objects in a circular motion

Question 44

Why would we float away if there was no gravity on Earth?

Accepted Answer

Because there would be nothing pulling us towards the Earth's surface

Answer

Because the Earth's surface is slippery

Answer

Because there would be no air resistance

Answer

Because the Earth would stop spinning

Question 45

What happens to a ball when you throw it into the air?

Accepted Answer

It comes back down due to gravity

Answer

It keeps going higher and higher

Answer

It floats in the air

Answer

It orbits around the Earth

Question 46

How does gravity affect our weight?

Accepted Answer

It is how hard gravity is pulling us towards the Earth's surface

Answer

It determines the speed at which we move

Answer

It changes our height

Answer

It measures the air pressure around us

Question 47

If someone weighs 100 pounds on Earth, how much would they weigh on the moon?

Accepted Answer

16 pounds

Answer

100 pounds

Answer

50 pounds

Answer

200 pounds

Question 48

What kind of force is gravity?

Accepted Answer

A non-contact force that never stops

Answer

A contact force that requires two objects to touch

Answer

A force that only works during the day

Answer

A temporary force that comes and goes

Question 49

What is the primary goal of the egg drop experiment?

Accepted Answer

To create a contraption that will protect an egg from breaking when dropped from a certain height

Answer

To demonstrate the principles of art and design

Answer

To learn about the different types of materials like straws and paper cups

Answer

To practice cooking skills with eggs

Question 50

What concepts does the egg drop experiment demonstrate?

Accepted Answer

Force, gravity, and Newton's Laws of Motion

Answer

Chemical reactions and molecular bonds

Answer

Photosynthesis and plant growth

Answer

The water cycle and evaporation

Question 51

What is the force that tries to pull two objects together?

Accepted Answer

gravity

Answer

magnetism

Answer

friction

Answer

electricity

Question 52

What kind of force acts at a distance?

Accepted Answer

non-contact force

Answer

contact force

Answer

friction

Answer

air resistance

Question 53

The distance traveled in an amount of time is known as ________.

Accepted Answer

speed

Answer

acceleration

Answer

potential energy

Answer

friction

Question 54

A force that requires two pieces of matter to touch is a ________.

Accepted Answer

contact force

Answer

gravity

Answer

non-contact force

Answer

magnetism

Question 55

_______ is the force that results when two materials rub against each other or when their contact prevents sliding.

Accepted Answer

friction

Answer

electricity

Answer

gravity

Answer

magnetism

Question 56

The force between the two people through the rope is

Accepted Answer

Contact Pull

Answer

Non-contact Pull

Answer

Contact Push

Answer

Non-contact Push

Question 57

Gravity is a

Accepted Answer

Non-contact Force

Answer

Contact Force

Answer

Myth

Question 58

The force between the phone and the mount is a

Accepted Answer

non-contact force

Answer

contact force

Question 59

The three examples pictured are of

Accepted Answer

Contact Forces

Answer

Non-contact Forces

Question 60

a force that attracts things to Earth.

Accepted Answer

gravity

Answer

force

Answer

inertia

Answer

motion

Question 61

A non-contact force is between

Accepted Answer

two objects that aren't touching

Answer

two objects that are touching

Answer

the ground and wheels

Answer

you and me

Question 62

Friction is a

Accepted Answer

Contact Force

Answer

Myth

Answer

Non-contact Force

Question 63

Magnetic Force is an example of ____________ force.

Accepted Answer

non-contact

Answer

contact

Answer

balanced

Answer

unbalanced

Question 64

What type of force is exerted when two magnets attract or repel each other?

Accepted Answer

Non-contact force

Answer

Gravity force

Answer

Contact force

Answer

Friction force

Grade 4 Energy: Non-contact forces Unit review

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