Force
If an object is pushed from both sides with 100N, what will happen to the object?
Will a more mass object or less massive object take more force to stop?
More massive object
The amount of matter in an object is called its...
mass
You push a chair across the floor. It gradually slows down and stops. Why did the chair stop moving?
friction from the floor
What is a controlled variable?
ALL things that stay the same throughout the experiment.
What is required to change the velocity of an object?
force
What are the 5 ways an object can change velocity?
Start, Stop, Speed Up, Slow Down, or Change Direction
A push or pull that can cause motion
force
Sandra pushed a wooden block and it slid across the floor. The wooden block gradually slowed down and stopped after moving 10 meters. Why did the block stop moving?
Friction
What is a dependent variable?
it responds to the one thing you changed. Think of this as what you are measuring.
To stop an object, the force must come from:
the opposite direction of the object's motion
It takes more force to slow down your bicycle by 5 mph than to speed it up 5 mph. True or False
False
The force that slows down motion between touching objects.
friction
A pod hits a space station. The space station is much more massive than the pod. The pod experiences a much stronger force than the station. True/False
False
What is the one thing you change in an experiment called?
Independent variable
To speed up an object, the direction of force should be:
in the same direction of the object's motion
Speed with direction
Velocity
when 2 objects hit each other
collision
A pod hits a space station. The space station is much more massive than the pod. The pod experiences a much greater change in velocity. True/False
True
Three golf balls with the same mass were rolling on the ground. Each ball was hit by a golf club, but not from the same direction. All the golf balls changed speed as a result of being hit. Ball A speeds up by 2cm/s, Ball B speeds up by 2cm/s and Ball C slows down by 2cm/s. Which ball experienced the strongest force?
All 3 experienced the same force because they all changed velocity by the same amount.
To start an object moving, the force must come from:
any direction
An object with less mass collides into an object with more mass. Which object will have the great change in velocity?
less mass
To apply a force
Exert
There is a collision between a bug and a car. The bug experiences a greater change in velocity because...
it has a much smaller mass
When is Mr. Pancotto's birthday? (Month, day)
September 6