Forces Basics
A push or a pull that can change motion.
What is a force?
Forces that do not change an object’s motion.
What are balanced forces?
A change in position over time.
What is motion?
In motion, the cause.
What is a force?
What causes a soccer ball to move when kicked.
What is an unbalanced force?
What forces can change about an object.
What is its motion (speed or direction)?
Forces that cause an object’s motion to change.
What are unbalanced forces?
How fast an object moves.
What is speed?
The effect of pushing harder on an object.
What is moving faster?
The force used by brakes to slow a car.
What is friction?
The force that pulls objects toward Earth.
What is gravity?
What the net force is when forces are equal and opposite.
What is zero?
What happens when a force acts in the same direction as motion.
What is speeding up?
The force that resists motion between surfaces.
What is friction?
A game that shows balanced and unbalanced forces.
What is tug-of-war?
What happens when more than one force acts on an object.
What is multiple forces acting at the same time?
One possible result of unbalanced forces.
What is a change in speed or direction?
What happens when a force acts opposite the direction of motion.
What is slowing down?
What can happen when a force is removed.
What is a change in motion?
Why falling objects speed up.
What is gravity?
How a stronger force affects an object’s motion.
What is a bigger change in motion?
The condition when an object at rest stays at rest.
What are balanced forces acting on it?
A change in motion that does not involve speed.
What is a change in direction?
How motion changes when unbalanced force increases.
What is a greater change in motion?
What causes a bike to turn.
What is an unbalanced force?