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The state in which one object's distance from another is changing. A. Motion. B. Speed. C. Velocity
A. Motion.
The distance an object travels in one unit of time. A. Motion. B. Speed. C. Velocity
B. Speed.
Speed in a specific direction. A. Motion. B. Speed. C. Velocity
C. Velocity
The rate at which velocity changes - if we speed up, is that positive or negative acceleration?
Speeding up in POSITIVE acceleration
The rate at which velocity changes - if we slow down, is that positive or negative acceleration?
Slowing down is NEGATIVE acceleration
The force when 2 surfaces rub against each other. A. Friction. B. Gravity.
A. Friction
The force that pulls objects toward Earth. A. Friction. B. Gravity.
B. Gravity.
An object at rest remains at rest unless acted upon by an unbalanced force. Which Law of Motion?
Newton's 1st Law of Motion - think of Mr. Wolfe moving a tissue
Force = mass x acceleration; Objects with a large mass require more force
Newton's 2nd Law of Motion - think of a semi trying to stop quickly vs a little car
For every action, there is an equal but opposite reaction
Newton's 3rd Law of Motion - think of an echo
If you see a ball bounce, what Law of Motion are you witnessing? 1st, 2nd, or 3rd
Newton's 3rd Law of Motion - for every action there is an equal but opposite reaction
True or False: A force is a push or pull on an object unit Newtow (N)
True. That is the definition of force.
If you see someone push in their chair, what Law of Motion are you witnessing? 1st, 2nd or 3rd
Newton's 1st Law of Motion - an object at rest remains at rest unless acted upon by an unbalanced force.
Who will hit a baseball harder: an adult or a child? Will it go farther? Which Law of Motion tells us that more force creates more acceleration?
Newton's 2nd Law of Motion states that Force = Mass x Acceleration (more force creates more acceleration)
If I rub my hands together, what force am I using? Gravity, Velocity, or Friction?
Friction! It's when 2 surfaces rub against each other.
True or False: Velocity is speed in a specific direction.
True! That is the definition of Velocity.
