WorksheetsForce, motion and Magnetism
Total questions: 100
Worksheet time: 50mins
What is a force?
A. A type of energy
B. A push or a pull
C. The speed of an object
D. A change in direction
If you push a toy car and it starts moving, what caused the motion?
A. A balanced force
B. An unbalanced force
C. Gravity only
D. Friction only
When two people pull a rope with the same amount of force in opposite directions, the forces are:
Unbalanced
Moving
Balanced
Magnetic
Which force pulls objects toward the center of the Earth?
Magnetism
Friction
Gravity
Static Electricity
Friction is a force that:
Speeds objects up
Pulls objects down
Resists or slows down motion
Only happens in space
If a soccer ball is sitting still on the grass, the forces acting on it are:
Unbalanced
Changing
Balanced
Absent
To make a heavy box move faster, you should:
Use less force
Use more force
Which surface would create the MOST friction for a rolling marble?
Ice
A smooth glass table
A thick carpet
A tile floor
If you are riding a bike and hit the brakes, you are using:
Gravity to stop
Friction to stop
Magnetism to stop
Balanced forces to stop
Which is an example of a "pull"?
Kicking a ball
Closing a drawer by pushing it
Typing on a keyboard
Opening a refrigerator door
An object's motion will NOT change if:
The forces are unbalanced
A new force is applied
The forces are balanced
Friction is removed
If two kids are pushing a swing from the same side, their forces:
Cancel each other out
Combine to create a stronger force
Become balanced
Turn into gravity
What happens to a moving object if an unbalanced force acts in the opposite direction?
It speeds up
It slows down or stops
It stays the same speed
It turns into a magnet
Which force helps a person stay on a slide instead of floating away?
Friction
Magnetic force
Gravity
Static force
Rougher surfaces usually create:
Less friction
More friction
No friction
More gravity
If you throw a ball into the air, why does it come back down?
Because of the push you gave it
Because of gravity
Because of the wind
Because it runs out of air
To move a stalled car, several people push together. This is because:
They want to create balanced forces
They need a large unbalanced force to change the car's motion
Gravity is pushing the car up
Friction is helping them move it
A "net force" of zero means:
The object is accelerating
The forces are balanced
There is no gravity
The object is in space
Which of these is a non-contact force?
Kicking a ball
Magnetic attraction
Pushing a chair
Pulling a wagon
If you slide a book across a table, it eventually stops. This is because:
The push ran out
Gravity stopped it
Friction acted against the motion
The table became magnetic
Mass refers to:
How fast an object moves
The amount of matter in an object
The pull of gravity
The color of an object
It is harder to stop a bowling ball than a tennis ball because:
The bowling ball has more mass
The tennis ball is faster
Gravity doesn't pull on bowling balls
Friction doesn't work on tennis balls
Air resistance is a type of:
Magnetic force
Gravity
Friction
Pull
If a car is traveling at a constant speed in a straight line, the forces are:
Unbalanced
Balanced
Why do we use oil on bicycle chains?
To increase friction
To reduce friction
To make it magnetic
To increase gravity
If you watch a pendulum swing, you can predict it will:
Stop suddenly at the top
Continue to swing back and forth in a pattern
Start spinning in circles
Fly off the string
Which of these shows a predictable pattern of motion?
A leaf falling in a windstorm
A person walking through a crowd
A child on a swing
A dog chasing a butterfly
To predict the future motion of an object, scientists:
Guess based on color
Observe past patterns of motion
Measure the object's temperature
Ask the object to move
A merry-go-round moves in what pattern?
Zig-zag
Back and forth
Circular
Straight line
If a ball is rolling down a straight ramp, you can predict it will:
Turn left suddenly
Continue moving down the ramp
Jump into the air
Stop moving instantly
Which device uses a back-and-forth pattern of motion to keep time?
A. A digital watch
B. A grandfather clock with a pendulum
C. A compass
D. A thermometer
If a seesaw is balanced, and a child on the left pushes off the ground, what will the child on the right do?
(a)
When a ball is bounced on a flat floor, the pattern is usually:
Up and down
Left and right
In a circle
Random
Observations of a spinning top help us predict it will eventually:
Speed up forever
Slow down and tip over
Change into a cube
Float away
Which of these is NOT a regular pattern of motion?
The Earth orbiting the Sun
A yo-yo going up and down
A lightning bolt striking
The tide going in and out
If you pull a spring and let it go, it will:
Stay stretched out
Vibrate or bounce back and forth
Turn into a magnet
Melt
A bowling ball rolling down a lane follows what kind of path?
A. A predictable straight line (usually)
B. A circular path
C. A zig-zag path
D. No path at all
Why is it easier to predict the motion of a train than a butterfly?
Trains are louder
Trains follow a fixed track (pattern)
Butterflies are heavier
Trains have more magnets
What pattern of motion does a pogo stick have?
Circular
Up and down
Straight line forward only
Side to side
If you throw a boomerang correctly, the pattern of motion is:
A straight line away
A curved path that returns
A random zig-zag
Up and down
A person jumping on a trampoline follows which pattern?
Circular
Repetitive up-and-down
Back-and-forth
Spiral
If a car is driving around a circular race track, you can predict it will:
Always be turning
Always be going straight
Eventually stop at the top
Become a pendulum
Which is a pattern of motion for a door on hinges?
Sliding up and down
Swinging in an arc
Spinning 360 degrees
Moving in a straight line
To predict where a marble will land when rolled off a table, you need to know:
Its speed and direction
Its color and price
Its name
If it likes gravity
A sliding glass door moves in a:
Circular pattern
Straight line pattern
Back-and-forth arc
Random pattern
Which of these is a predictable seasonal pattern?
A. A single rain shower
B. The migration of birds every winter
C. A car accident
D. A bird chirping once
A "rhythmic" motion is one that:
Never repeats
Repeats in a regular pattern
Only happens once
Is caused by magnets only
If you are swinging on a swing set, at what point are you moving the slowest?
At the very bottom
At the highest point of the swing
In the middle of the swing
Swings don't have a slow point
Predictable motion helps engineers design:
Roller coasters
Clock mechanisms
What force causes a pendulum to eventually stop swinging?
Magnetism
Friction (at the pivot and air resistance)
Static electricity
The ground
What are the two poles of a magnet?
East and West
Up and Down
North and South
Red and Blue
What happens when two North poles are brought together?
They attract
They repel (push away)
They explode
Nothing happens
What happens when a North pole and a South pole are brought together?
They attract (pull together)
They repel
They stay still
They lose their magnetism
Which metal is attracted to a magnet?
Aluminum
Copper
Iron
Gold
Magnetism is a:
Contact force
Non-contact force
Type of friction
Form of gravity
The area around a magnet where the force can be felt is called the:
Magnetic field
Danger zone
Gravity well
Static space
Which of these will a magnet NOT pick up?
A steel nail
A plastic paperclip
Static electricity is caused by the buildup of:
Magnets
Water
Electrical charges
Friction
If you rub a balloon on your hair, the balloon sticks to the wall because of:
Gravity
Magnetic force
Static electricity
Glue
Like charges (positive and positive) will:
Attract
Repel
Neutralize
Melt
Opposite charges (positive and negative) will:
Attract
Repel
Do nothing
Turn into magnets
Why does your hair sometimes stand up after taking off a wool hat?
Magnetism in the hat
Static electric charges repelling each other
Gravity pulling hair up
The wind
Which is an example of static electricity in nature?
A. A hurricane
B. Lightning
C. An earthquake
D. A river flowing
How can you make a magnetic force stronger?
Move the magnets further apart
Move the magnets closer together
Paint the magnets
Turn the magnets sideways
A compass needle points North because:
It likes the cold
The Earth acts like a giant magnet
The wind blows it that way
It is powered by a battery
Can magnetic forces work through a piece of paper?
Yes, magnetic forces can work through a piece of paper.
No, magnetic forces cannot work through a piece of paper.
Magnetic forces only work through metal objects.
Magnetic forces only work in a vacuum.
What happens to the strength of a magnetic field as you move away from the magnet?
It gets stronger
It stays the same
It gets weaker
It disappears instantly
If you break a magnet in half, what happens?
You have two North poles
You have two South poles
You have two smaller magnets, each with a North and South pole
The magnets stop working
Which of these uses magnets to work?
A. A wooden spoon
B. A refrigerator door seal
C. A glass window
D. A rubber band
An electromagnet is a magnet that:
Stays on forever
Works using electricity and can be turned on and off
Is found in the ground
Is made of plastic
When you walk across a carpet and touch a metal doorknob, you might feel a shock. This is:
Magnetism
A discharge of static electricity
Gravity
Heat
Why do magnets stick to some refrigerators but not others?
Some refrigerators are too tall
Only refrigerators made with magnetic metals (like steel) work
Some refrigerators are too cold
Magnets only stick to white appliances
A material that allows electricity or magnetism to pass through easily is called a:
Insulator
Conductor
Magnet
Pole
Which of these can attract things without touching them?
A. A magnet
B. A charged balloon
Magnetic force can be used to:
Sort metal in a recycling center
Cook food in a pan
Change the color of light
Make things heavier
An engineer wants to keep a cabinet door closed without a latch. They should use:
Two repelling magnets
Two attracting magnets
More friction
A heavier door
How could you reduce friction on a heavy crate you need to move?
Add more weight to it
Put it on a rug
Put it on a cart with wheels
Make the floor rougher
Maglev trains use which force to "float" above the tracks?
Gravity
Magnetic repulsion
Friction
Air pressure
To prevent a rug from sliding on a smooth floor, you should:
Add a non-slip pad to increase friction
Add oil to the floor
Use magnets
Make the rug smaller
Which design would help a car go faster down a ramp?
Square wheels
Adding sandpaper to the ramp
Smooth, round wheels and a smooth ramp
Making the car out of lead
If a scientist wants to move a metal scrap without touching it, they could use:
A. A push
B. A magnet
C. A pull
D. Friction
Why do sneakers have rubber soles with patterns?
To make them look cool
To increase friction so you don't slip
An inventor wants to make a "floating" pen holder. Which force should they use?
Friction
Magnetic repulsion
Gravity
Static electricity
To stop a boat from drifting away from a dock, you should use:
A push
A rope to provide a pulling force
A magnet
Static electricity
Which is a way to solve the problem of a door that squeaks?
Add more friction
Use a magnet
Use oil to reduce friction in the hinges
Remove the door
Parachutes are designed to:
Increase air resistance (friction) to slow a fall
Increase gravity
Use magnetism to stick to the ground
Look like clouds
If you want to hold two pieces of metal together temporarily, you could use:
Gravity
Friction
A magnet
Static electricity
To move a heavy rock, a person uses a long board (lever). This helps by:
Changing the direction of the force
Reducing the amount of force needed
Removing gravity
Both A and B
A "non-contact" solution to organize paperclips would be:
Picking them up one by one
Using a magnet to gather them
Blowing them with a fan
Using tape
Why do we put "sliders" under furniture legs?
To increase friction
To decrease friction and protect the floor
To make the furniture magnetic
To make the furniture heavier
The best way to separate iron filings from sand is:
Using a magnet
Using filtration
Using evaporation
Using distillation
Engineers use ball bearings in machines to:
Increase friction
Decrease friction by letting parts roll instead of slide
Add weight
Connect magnets
A doorstopper works because of:
Magnetism
Friction between the stopper and the floor
Static electricity
Gravity pulling the door up
To make a swing go higher, you must:
Apply a larger unbalanced force (push)
Use balanced forces
Stop the swing
Add more gravity
If you want to see if an object is magnetic, you should:
Drop it to see if it breaks
Put a magnet near it to see if there is a force
Rub it on your hair
Measure its length
Which force is used when you use a "velcro" strip?
Magnetic force
Friction/Mechanical interlocking
Gravity
Static electricity
An architect designs a roof to be slanted so that:
Gravity pulls snow and rain off
It attracts magnets
It creates more friction
It floats
To protect a car during a crash, engineers use:
Seatbelts to provide a counter-force
Airbags to increase the time a force acts
Strong materials
All of the above
Why is it hard to walk on ice?
There is too much friction
There is very little friction
Gravity is stronger on ice
Which of these is a way to use static electricity to solve a problem?
Using it to power a city
Using it in air filters to "grab" dust particles
Using it to cook dinner
Using it to make a car drive
