velocity
The speed and direction of a moving object
velocity
the amount of matter in an object
mass
A stronger force can create a greater change in...
velocity
Friction is:
A force between an object and the surface it is moving over.
The moment when two objects hit each other
Collision
Velocity is:
Speed in a particular direction
Speed, size, weight, force
weight
A force is:
A push or pull that can change the motion of an object.
Which of the following has more friction:
Hardwood floor or carpet
carpet
True or false:
A force is required to change the velocity of an object.
TRUE
Which of the follwing is one of the five ways an object's motion can change:
Hit something, speed up, fly off the table, or bounce off something.
Speed up
Anything that has mass and takes us space:
Matter
You apply the same amount of force to a playground ball and a bowling ball. Which object will have the largest change in velocity?
Playground ball
in order for an object to stop moving the force must come from...
opposite direction from the objects motion
If an unbalanced force acts on a stationary object the object will...
accelerate in the direction of the force.
Speed is:
How fast an object is moving
If a ball with more mass hits a ball with less mass will the ball with less mass:
stay the same, speed up, slow down
speed up/accelerate
To apply a force
Exert
Because friction is higher on a grassy field, but on the ice rink, frictionless ice drastically reduces friction.
True or false:A stronger force causes a smaller change in velocity.
FALSE
If a ball was pushed would it gain velocity or lose velocity
gain velocity
What is newtons second law
mass times acceleration equals force.
In order for an object to start moving, the force must come from:
Any direction
Joe pushed a tennis ball aross the carpet floor in his house. The ball gradually slowed down and then stopped after 3 meters.
Why did it stop moving?
The floor exerted a force that is opposite to the direction of the block's motion.
True or false:
How an object changes velocity depends on the direction of the force exerted on that object.
TRUE