Vocabulary
Force
Magnets
Fill in the Blank
True or False
100
What does object mean?
An object is a thing that can be seen or touched.
100
What is a force?
A push or pull that causes movement
100
What is a magnet?
A magnet is an object that pulls on some kinds of metal and pushes and pulls on other magnets, even without touching them.
100
The ice cream man was out of ice cream, so he said he was going home. He started pushing the cart away.
"Another force!" I said. "He pushed on the cart, and it started _______."
moving
100
True or False:
Forces act between a pair of objects.
True
200
What does evidence mean?
Evidence is information that helps you figure out an answer to a question.
200
When the girl on her roller skates started moving, that was an evidence of force. Where did the force come from?
Her hands pushing on the fence
200
When the same magnetic poles face each other, they will...
Possible answers:
Repel
Push away
200
"I see evidence of a force!" said Lee. "When that kid held the magnet near the paper clip, the paper clip moved. It jumped up and stuck to the magnet. The magnet ______ on the paper clip before they were even touching!"
pulled
200
True or false: Magnets can repel or attract.
True
300
What does predict mean?
Predict means to use what you already know to decide what you think might happen.
300
List 3 different kinds of forces.
Possible answers:
push, pull, gravity, magnetic force, balanced force, unbalanced force
300
Which magnet has the strongest magnetic force?
The mighty magnet
300
"If you touch the north pole of one magnet to the south pole of another, the magnets pull together. That's called ___________."
attracting
300
True or false: A magnet can attract all types of metals.
False
A magnet cannot attract brass or copper.
400
What does observe mean?
To observe means to use one or more of your five sense to learn more about something.
400
What two forces acted on the ball?
A push and gravity
400
List three objects a metal could attract.
Possible answers: paper clip, steel wool, twist tie, steel+brass fastener, washer, spoon 1
400
A non-touching force called ___________ acts on this skateboarder, making him and his skateboard fall back down to the sidewalk after he jumps.
gravity
400
True or false: When an object falls because Earth pulls the object towards it, that is called balanced force.
False
The correct term is gravity.
500
What does exert mean?
Exert means to cause a force to act on an object.
500
When there are two equal forces acted on an object and there is no motion, what kind of force is this?
Balanced Force
500
Use the word attract in a sentence.
Possible answers:
The north pole and south pole of a magnet will attract to each other.
A magnet can attract some metal objects.
500
Here is a ___________ my sister made to record what we found out. We looked at it together to try to figure out which metals magnets attract. We have some ideas, but we still have questions.
table
500
True or false: There can only be 1 force on an object at a time.
False
There can be 2 or more!