Show:
Magnets
Friction
Gravity
Force and Load
Mixed
100
What kind of objects do magnets attach to?
Metal objects.
100
Friction is a force that (increases/decreases) movement that occurs when two objects rub together.
Decreases.
100
True or false. A roller coaster going down a hill shows the force of gravity.
True.
100
If I am pushing a toy car with my hand, what is the force?
Your hand.
100
A spinning top continuously spinning shows what property?
Inertia.
200
What are the two sides on a magnet?
North and south.
200
What can you do with your hands in order to experience friction?
Rub them together.
200
What is the definition of the force of gravity?
The force that pulls an object back to the ground.
200
If I am lifting a bucket filled with marbles up onto a high shelf, what is the load?
The bucket filled with marbles.
200
I have a box of 100 toy cars, what can I use to make them easier to lift off of the ground?
A pulley.
300
If I place two north ends of a magnet together, what will happen?
The magnets will repel away from each other (separate).
300
What will move faster? If I pull a box on a carpet, or on a floor? Why?
The box that is moved on the floor because friction is not stopping forcing it to stay still.
300
What would go farther down the same ramp? A large sized marble or a small marble?
A small marble.
300
When I am pushing an object forward, I am applying__________?
Force.
300
What does a pulley do?
A pulley allows you to move the same load with less force
400
If I place two magnets together with a north and south side together, what will happen?
The two magnets will stick together (opposites attract).
400
What will happen if I place pencils under a box and roll it over the carpet?
The force of friction will decrease, therefore the box will move faster because the pencils act like wheels.
400
Name a toy that uses the force of gravity.
Answers will vary.
400
The object being pushed or pulled is called the _________.
The load.
400
Name three different ways that toys get their power to move.
Pushing, pulling, gravity, batteries, magnets, springs, pulleys
500
If I have a bowl of coins, what will happen if I put a magnet near them? Why?
The magnets will stick to the coins because they are magnetic and made out of metal.
500
What do you think would have happened if the carpet was on a ramp? Would the box have moved?
The box would not move but if the ramp is inclined enough, it would move very very slowly.
500
What is a prediction and is it always right?
A prediction is a scientific guess about how things will work or how an experiment will turn out. It is not always right.
500
A crane is a real life example of a what?
A pulley
500
When I am using a yoyo and push it to the ground, what is the force and what is the load?
Your hand is the force and the yoyo is the load.