Force
Which has more friction, rubber, ice, or plexiglass?
rubber
At dinner, Hans passed the salt shaker to his sister Jessica by sliding it across the wooden table. The salt shaker gradually slowed down and stopped after moving 12 centimeters.
Why did the salt shaker stop moving?
The table exerts a force that is opposite to the salt shaker's motion.
Newton's First law says this:.
An object at rest will remain at rest, an object in motion remains in motion unless a force is applied
You push a chair across the floor. It gradually slows down and stops. Why did the chair stop moving?
friction from the floor
Who won the dodge ball game?
Students
What is required to change the velocity of an object?
force
What are the 5 ways an object can move?
(DOUBLE POINTS)
Start, Stop, Speed Up, Slow Down, or Change Direction
A push or pull that can cause motion
force
You are playing pool. You hit the white ball and it hits a solid blue ball that is still. What happens to both balls after the collision?
The white ball will stop and the blue ball will start moving.
Mr Raigoza used force to throw the balls at students taking out 4, but they never left the game, was force used to eliminate them from the game?
Yes, the ball hit them
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, to stop it you need to exert the same force, and to speed up you need to double the force
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
A car travels 25 meters west in 5 seconds. What is the velocity?
(DOUBLE POINTS)
5 m/s West
To speed up an object, the direction of force should be:
in the same direction of the object's motion
Speed with direction
Velocity
Mr Raigoza did not drink his energy drink, he is tired and cranky, what is the Cause and Effect?
Cause: Mr Raigoza did not drink his energy drink
Effect: he is tired and cranky
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
You travel for three hours at a speed of 30 km/hr. What is the distance?
90 km
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
Mr Raigoza was ruled the champion of the dodge ball game, How many students were hit with the dodge balls, and how many students were playing on the students side?
(Double Points)
4, 12