The Basics
What is physics?
Physics is the study of the physical world around us!
What is kinematics?
The study of motion!
What is a force
A push or pull on an object
What force did we explore in our second experiment (the one with the ramps)?
Friction!
How many steps are in the scientific method?
6
What unit of measurement do physicists use to measure length?
meters (m)
Define Newton's First Law of Motion
An object in motion will stay in motion, and an object at rest will stay at rest, until an outside force is exerted on the object.
Who came up with 3 laws of motion?
Isaac Newton
What is a vector?
A vector is an arrow that shows both magnitude and direction
What is the different between speed and velocity?
Speed it how fast/slow an object is moving
Velocity is an object's speed in a particular direction
Give an example of Newton's First Law!
example
What is Newton's Third Law of motion?
With every action, there is an equal and opposite reaction.
What letter do physicists use to show an object's position?
x
What is acceleration?
The change in velocity over time
In what direction does the normal force point?
Perpendicular to the surface
Complete the sentence:
An object will change it's motion when the forces acting on it are....
unbalanced!
What is an analysis?
When you compare your observations to your hypothesis.
How is time involved in kinematics?
Time is in the denominator for the equations for velocity and acceleration.
What is the relationship between mass and acceleration?
F = mass x acceleration
When an object moves in a circular motion, what force points outwards?
Centrifugal