Equal forces act on an object in opposite directions. What happens to the object?
The object stays still or moves. (no change in motion)
The movement of energy between colliding objects is called ____.
Transfer of energy β the movement of energy between colliding objects.
A force that pulls magnetic materials across a distance.
Magnetism β a force that pulls magnetic materials across a distance.
A change in the position of an object is called ____.
Motion β a change in the position of an object.
When two objects come in contact and apply forces on each other.
Collision β when two objects come into contact and apply forces on each other.
Unequal forces act on an object in opposite directions?
Motion
This force slows things down when two surfaces rub against each other.
Friction β a force between two surfaces rubbing against each other (slows things down).
The force that pulls all objects toward each other.
Gravity β the force that pulls objects toward each other.
The path that a moving object follows.
Direction β the path that a moving object follows.
The word that describes how strong a force is or how hard it pushes or pulls.
Strength β how strong a force is, or how hard it pushes or pulls on an object.
How do two objects affect one another when they touch or come close?
Interaction
Why does a soccer ball eventually stop rolling even on a flat field?
Friction between the ball and the ground slows it down.
A magnet pulls a paperclip without touching it. Which type of force is this?
Magnetism β a force that pulls magnetic materials across a distance.
The distance an object travels in a certain amount of time.
Speed β the distance an object travels per unit of time or how fast something moves
A baseball bat hitting a ball is an example of which type of interaction?
Collision β when two objects come into contact and apply forces on each other (also transfer of energy).
When two kids push each other with equal strength on a swing, it keeps moving faster
TRUE or FALSE
FALSE - Equal forces cancel out, so no change in motion
Give an example of transfer of energy in sports.
A baseball bat hitting a ball or a foot kicking a soccer ball.
True or False: Gravity pushes objects upward.
False β Gravity pulls objects toward each other (downward).
What happens to the speed of a bike going downhill compared to uphill?
It goes faster downhill and slower uphill because of gravity.
Two bumper cars crash with equal force. What happens?
Both stop or bounce back because the forces are equal.
A heavy box is sitting on the floor. Mia pushes to the right, and Alex pushes even harder to the left.
Which way will the box move, and why?
The box will move to the left because Alexβs push is stronger, so the forces are unequal and the stronger one wins.
A toy car slides across the floor and stops. What force caused it to slow down?
Friction β a force between two surfaces rubbing against each other.
Compare gravity and magnetismβhow are they alike and how are they different?
Both pull objects, but magnetism pulls certain materials like iron or steel across a distance, while gravity pulls all objects toward each other.
A soccer ball is kicked straight across the field. The wind blows from the side, and the ball starts turning to the right.
What changed: the ballβs motion, its direction, or its speed? Explain why.
The direction changed because the wind pushed it sideways while it was moving forward.
If two objects of different sizes collide, how does their mass affect the collision?
The heavier object changes motion less; the lighter object changes motion more.