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WorksheetsGrade 3 TCI Science - Unit 2 Lessons 1-4 Content
Total questions: 67
Worksheet time: 34mins
What is motion?
An object's location
A change in the force placed on an object
A change in the position of an object
The speed of an object
Motion is a change in the _____ of an object.
size
speed
direction
position
_______________ is which way an object moves.
motion
speed
direction
position
_____________ is how fast an object moves.
motion
friction
direction
speed
Which of these is an example of putting force on an object?
hitting a baseball with a bat
typing on a keyboard
pushing dirt with a bulldozer
all of the above
Two volleyball players hit a ball back and forth. If they use the same amount of strength, how are their forces different?
One is stronger than the other.
One moves the ball farther than the other.
They are on different objects.
They are in different directions.
Which can happen when force is put on an object?
The object can turn.
The object can speed up.
The object can slow down.
All of the above
_______ is an object’s location compared to its surroundings.
force
motion
position
speed
When something is in motion, it
has a strong pull.
changes position.
does not have force.
pushes with a lot of strength.
What is force?
a push or pull on an object
the strength an object is pushed
the speed an object changed position
an object's location compared to its surroundings
Which of the following is an example of force pulling an object?
pressing a doorbell
turning a book's page
typing on a keyboard
walking on the sidewalk
Forces have
size and shape.
size and direction.
strength and direction.
strength and position.
A force can ________ an object.
speed up
slow down
turn
all of the above
Which of the following is used to describe motion?
force
pull
speed
strength
This picture shows Julie bowling. Which two objects are putting forces on each other in this picture?
Julie and the bowling pins
the bowling ball and the floor
Julie’s shoes and the bowling pins
the bowling ball and the bowling pins
Malik wants to get a home run in baseball. When the ball is thrown at him, he wants to make it go far and high in the opposite direction. What kind of force should he put on the ball?
a weak force forward
a strong force forward
a weak force toward the ground
a strong force toward the ground
What happens when two forces push or pull on an object in the same direction?
They cancel each other out completely.
They become a stronger force in that direction.
They become a weaker force in that direction.
They make the object move in the opposite direction.
A book is resting on a table. What kind of forces must be acting on the book?
The book must not have any forces acting on it.
The forces acting on the book must be balanced.
The forces acting on the book must be very weak.
The book must have an unbalanced force acting on it.
The force that pulls down is called __________.
gravity
balance
unbalanced
dynamometer
What happens to an object that has unbalanced forces acting on it?
The object will get bigger.
The motion of the object will change.
The object will stay still.
The object will break apart.
Which is a tool that scientists can use to measure force?
spring scale
ruler
thermometer
stopwatch
There are six children in this game of tug-of-war. They are split into two teams: Team Left and Team Right. At first the rope does not move. Are the forces balanced or unbalanced?
balanced
unbalanced
One of the players on Team Right decides to stop pulling. What will happen to Team Right's force?
The force on Team Right will INCREASE
The force on Team Right will DECREASE
When one player on Team Right stops pulling, will the forces be balanced or unbalanced?
balanced
unbalanced
Cal and Max are trying to move a box. If each boy is using an equal force, which picture shows how the box could move the farthest distance?
Look at the photograph above. If the apple is not moving, which BEST describes the force or forces acting on the apple?
The forces of the hand and gravity on the apple are balanced.
The forces of the hand and gravity on the apple are unbalanced.
The force of gravity is pushing upward on the apple, and it is balanced.
The force of the hand is pushing downward on the apple, and it is unbalanced.
Team A and Team B are pulling on the box in opposite directions. If the person on Team B is pulling on the box with equal strength to both people on Team A, what will happen to the box?
The box will not move in either direction.
The box will move in the direction of Team A.
The box will move slowly in the direction of Team B.
The box will move quickly in the direction of Team B.
Team A and Team B are playing tug-of-war. All of the players are pulling with equal strength except for one player on Team A, who is only pulling with half the strength of the other players.
If this game continues, who will win the game?
Team B, because the forces are balanced and they are pulling with greater strength.
Team A, because the forces are balanced and they are pulling with greater strength.
Team B, because the forces are unbalanced and they are pulling with greater strength.
Team A, because the forces are unbalanced and they are pulling with greater strength.
The science class wants to investigate how much force it takes for the ball to go into the goal. Which of the following tools could they use to measure this force?
a tool that is placed on the player’s foot
a tool that is placed on the goalie’s hand
a tool that is placed on the goalie's foot
a tool that is placed next to the soccer field
Observe the photo of the soccer players. After the student has kicked the ball toward the goal, the goalie catches and stops the ball. At what point does the soccer ball have a force of about 500 pounds?
after it was kicked
before it was kicked
as the goalie caught it
as the goalie set it down
The diagram shows two boys working together to carry a large box. They are moving the box in the direction that they are facing. Which image shows the correct direction of their forces?
The diagram above shows two boys working together to carry a large box. They are moving the box in the direction that they are facing.
Is their force on the box BALANCED or UNBALANCED?
balanced
unbalanced
Which of these is an example of back-and-forth motion?
a bowling ball rolling down a lane
a pinwheel spinning around
a child moving on a swing
a top turning
If you kick a soccer ball forward, what kind of motion will it move with and why?
Motion in a line, because gravity pulls it down.
Circular motion, because gravity pushes it back.
Back-and-forth motion, because the ball rolls as it moves.
Motion in a line, because the ball moves in one direction away from your foot.
To predict how an object will move means to use what you know to:
change the direction of the object.
change the position of the object.
learn about the object from what happened in the past.
tell what might happen to the object in the future.
You and your friend spin a jump rope in a circle. Predict what will happen if you keep spinning the jump rope.
The rope will stop moving.
The rope will keep moving in a circle.
The rope will stop moving in a pattern.
The rope will change directions.
Look at the picture. Describe the pattern of motion of the jump rope as the girl plays jump rope.
Back and forth
Circular
Straight line
Curved line
In the picture, are the forces on the girl balanced or unbalanced as she plays jump rope? How can you tell?
Balanced; the girl is standing still
Balanced; the girl is moving in a circle
Unbalanced: the girl's motion keeps changing
Unbalanced: the girl is standing still
In the picture, what force causes the girl to move upward?
Gravity
The jump rope
The girl pushing with her legs
The girls swinging the rope
In the picture, what force causes the girl to move downward?
Gravity
The jump rope
The girl pushing with her legs
The girls swinging the rope
Emi and Ana go to a fair and go on several rides shown here. The arrows show the direction of movement. Which pictures show rides that can move in a forward motion? Use evidence in the photos.
Pictures 1 and 2
Pictures 2 and 3
Pictures 1 and 3
Pictures 2 and 4
Ellie’s mother receives a clock as a present, and Ellie helps her hang it in the living room. When the clock is turned on, Ellie’s mother says it will move in different ways.
Which part or parts of the grandfather clock should Ellie expect to move in a back-and-forth motion?
A only
C only
A and B
B and C
Dante is on the school playground. Predict which playground object will move in a circle when Dante pushes it. Is the motion balanced or unbalanced?
Picture 1; balanced
Picture 2; unbalanced
Picture 3; unbalanced
Picture 4; balanced
Carol and her little brother José go to the park to ride the swings. What keeps José and Carol’s swing moving back and forth?
The poles pull down on the swing, bringing the swing backward.
The swing’s chains pull down on the swing, bringing it forward.
Gravity pulls down on the swing, and the chain pulls it backward.
The chain pulls down on the swing, and gravity pulls it backward.
Erik wants to find if dropping a basketball ball from a different height changes how far it will bounce. He measures the ball after each drop, and records the data in the table pictured.
2 cm
4 cm
6 cm
10 cm
Erik wants to use his observations of the basketball to be a better basketball player. Which of the following could Erik have learned during his experiment for playing basketball?
The basketball will bounce higher if he bounces it from a lower height.
The basketball will bounce lower if he bounces it from a higher height.
The basketball will bounce higher if he bounces it from a higher height.
The basketball will bounce at the same height no matter what height he drops it from.
Finn’s grandfather gets a windmill on his farm. Finn wants to know what makes the windmill move. His grandfather uses the diagram to explain it to him.
Which diagram shows how the wind will move the windmill?
Is the force of the windmill balanced or unbalanced?
balanced
unbalanced
Which of the following is the pattern of motion for the windmill?
Circular
Back and forth
Straight line
Zig-zag line
What will happen if you bring the north pole of one magnet near the south pole of another magnet?
The magnets will become stronger.
The magnets will lose their magnetic forces.
The magnets will push apart.
The magnets will pull together.
Where are magnetic forces strongest on a bar magnet?
near the poles of a magnet
in the middle of the magnet
at the north pole of the magnet
everywhere equally along a magnet
An electromagnet is a magnet that __________
has only one pole.
can be turned on and off.
always pushes objects.
produces electricity.
Engineers use magnets to design useful devices. Which of these devices uses magnets?
a lamp
a wheelbarrow
a scale
a doorbell
Anthony has two magnets with labels marking the north and south poles. He puts both magnets on the table. The “S” on one magnet is pointed toward the “N” of the other.
What can Anthony expect to happen?
The magnets will push apart.
The magnets will pull together.
The magnets will become stronger.
The magnets will lose their magnetic forces.
The photo shows a magnet surrounded by iron filings. Where does it show the magnetic forces are strongest?
near the poles of a magnet
in the middle of the magnet
at the north pole of the magnet
everywhere equally along a magnet
In order to conserve electricity, phones, doorbells, and motors need to remain off until they are used. Which statement BEST describes the problem that engineers need to solve when designing these objects?
Permanent magnets cannot be turned off.
Objects need to be silent until they are in use.
Electromagnets use electricity, which is expensive.
Magnets are used in many different types of objects.
These two magnets are made from the exact same material. Which investigation question asks about a cause and effect?
How strong is each of these two magnets?
Which magnet attracts more magnetic objects?
What is the material that makes up these two magnets?
How does the size of the magnet impact its magnetic force?
The material the engineer chooses needs to attract magnetic darts. It also needs to be strong enough not to break when objects are thrown at it.
Which material should the engineer choose for the dartboard?
Copper, because it has weak magnetic strength and weak material strength.
Iron, because it has strong magnetic strength and strong material strength.
Silver, because it has weak magnetic strength and average material strength.
Aluminum, because it has weak magnetic strength and weak material strength.
The engineer decides to play a prank on her friend. She wants to modify a dartboard so it attracts darts when she is throwing the dart. But, it does not attract darts when her friend is throwing the dart. Which solution best solves her problem?
building a dartboard with a nickel electromagnet, because it will attract magnetic darts and break easily
building a dartboard with silver permanent magnet, because it will not attract magnetic darts and is strong
building a dartboard with a copper electromagnet, because it will attract magnetic darts when turned on and has a low magnetic strength when turned off
building a dartboard with an iron permanent magnet and a second dartboard with a nickel permanent magnet, because both of them have strong magnetic strength
What is a magnetic force?
a force between electric charges
a push and pull between magnets
a measurable change in position
an attraction between like poles
Which of the following is true of all magnets?
all magnets can be turned on and off
all magnets have a strong magnetic force
all magnets always pull instead of push
all magnets have a north pole and a south pole
Which of the following statements about magnets is true?
like poles repel
unlike poles repel
magnets always pull
magnets always pull
____________ have the strongest attractive magnetic force.
Unlike poles that are far apart
Like poles that are far apart
Like poles that are close together
Unlike poles that are close together
Which of the following statements about electromagnets is false?
A motor uses electromagnets.
A refrigerator magnet is an electromagnet.
An electromagnet requires electricity to work.
An electromagnet can be turned on and off.
A maglev train is able to float above its tracks because _______________
like poles repel each other.
like poles attract each other.
unlike poles repel each other.
unlike poles attract each other.
A permanent magnet ___________________
is a material from Earth that is magnetic.
can be made from wire, nails, and a battery.
is magnetic when electricity flows through it.
A crane in a junkyard is picking up some metal scraps, but not as many as it should be. The workers think that the problem is that the magnet is not strong enough. Which is a possible solution to this problem?
They should move the crane closer to the objects it should be collecting.
They should make sure the electromagnet is turned on.
A permanent magnet should be used instead of an electromagnet.
