Position, Distance & Motion
What does position tell us?
Where an object is located.
When a toy car goes down a ramp, what can you change to make it go farther?
Make the ramp taller or steeper.
What is a force?
A push or pull.
What is electric current?
The flow of charged particles that gives energy to things like lights and computers.
Who was Thomas Edison and how did he make our lives easier?
He was an inventor who created the electric light bulb and helped people use electricity safely.
What word means how far apart two objects or places are?
Distance
Why does the toy car go farther when the ramp is higher?
A higher ramp gives it more speed or energy.
An object will not move unless a _________ acts on it.
Force
What do we call the buildup of electrical charge on an object?
Static electricity
Why do we need a complete circuit for electricity to work?
So electric current can flow in a closed path.
What word tells us which way something is moving — like north, south, left, or right?
Direction
What force makes a toy car slow down as it rolls on a rug?
Friction
When two forces are equal and opposite, what kind of forces are they?
Balanced forces
What happens when a balloon rubbed with wool is placed near confetti?
The confetti sticks to the balloon.
Which force makes a basketball slow down as it rolls across the floor?
Friction
If two toy cars start at the same place and go for the same amount of time but end up in different spots, how were their motions different?
They traveled in different directions.
Why does a toy car move faster on a smooth surface than on a rough one?
There is less friction on smooth surfaces.
When two forces are not equal and one side pushes harder, what kind of forces are they?
Unbalanced forces
When two objects pull toward each other, they ________.
Attract
Why would friction be different on ice and on concrete?
Ice has less friction, so objects move more easily; concrete has more friction, so objects slow down.
What tool can you use to measure distance between two objects?
A ruler or meter stick.
What happens when friction increases?
Objects slow down or stop moving.
A dog and its owner are pulling a rope in opposite directions, but the rope doesn’t move. What does that mean about the forces?
The forces are balanced.
When two objects push away from each other, they ________.
Repel
How can a snowboarder go faster before jumping off a ramp?
By using unbalanced forces or a steeper slope to gain speed.