Types of Forces
Mass or Distance
Does an object move if the net force is 0N?
No
Which has more momentum- a running toddler or a walking toddler?
Running toddler
Which would have more acceleration if the same force is applied- a cart with a duck in it or a cart with a pig in it?
Cart with a duck in it
What is the action and reaction with a cannon?
The action is the cannonball being launched and the reaction is the cannon rolling backwards
What is a normal force?
A supportive force
Does an object move if the net force is not 0N?
Yes
Which has more momentum- an elephant or mouse?
Elephant
Which would have more acceleration- a tennis ball hit by Serena Williams or a tennis ball hit by an elementary school student?
When you run, what is the action and reaction with the ground?
The action is your foot pushes down and the reaction is the ground pushing up
What is friction?
A force between two surfaces rubbing against each other
What is an example of balanced forces?
Ex. Two people pulling a rope in opposite directions with the same amount of force.
What kind of force needs to act on an object to change its motion?
Unbalanced
How does increasing mass when force is the same affect acceleration?
The acceleration will be less
If you are on rollerblades and you push against a wall, what is the reaction?
You roll backwards
What is an applied force?
A push or pull on an object applied by a person or object
What is an example of unbalanced forces?
If an object in motion stays in motion, why does a soccer ball eventually slow down?
Friction is an unbalanced force acting on the ball.
How does increasing force when mass is the same affect acceleration?
The object will accelerate more
What is an example or an action/reaction pair?
Ex. Rocket- gases push down and rocket goes up
What is air resistance?
A frictional force that occurs when air passes over an object
How do you find net force if forces are going in the same direction?
You add the forces together.
What affects momentum (there are two factors- name 1)?
Mass or velocity
What affects acceleration (there are two factors, name 1)?
Mass or Force
What does every action must have according to the 3rd law?
Equal and opposite reaction