terms
What are the 4 fundamental forces?
Gravitational Force, Electromagnetic Force, Strong Nuclear Force, Weak Nuclear Force.
What is the unit of measurement for both distance and displacement?
Meter
What are some common examples of vector quantities in physics?
force, displacement, velocity, ect.
What does a positive vs. a negative slope tell you?
A positive slope moves upward on a graph from left to right. A negative slope moves downward on a graph from left to right.
How can you calculate acceleration?
a = Δv/Δt.
what is motion?
an act, process, or instance of changing place : movement
Can the displacement ever be greater than the distance traveled?
No
What are the key differences between vector quantities and scalar quantities?
Vector quantities have two characteristics, a magnitude and a direction. Scalar quantities have only a magnitude.
Describe what a distance-time graph would look like at rest.
a horizontal line, left to right
Which force is responsible for holding the nucleus of an atom together?
nuclear force
What is speed?
rate of motion
What is the difference between distance and displacement in motion?
Distance is the length of the path taken by an object whereas displacement is the simply the distance between where the object started and where it ended up.
Describe what a distance-time graph would look like as an object speeds up.
A very steep slope means the object is moving at a large speed.
Is friction always a harmful force?
No, friction is bad in situations where speed is more important and when it prevents us from reaching our goals but good friction helps us make better decisions by making us think through the details and our assumptions. It slows us down and prevents us from making rash or ill thought out decisions.
What is velocity?
rapidity of movement or quickness of motion : speed
Give two examples of friction in everyday life
While writing, the tip of the pen is in contact with the paper surface which produces rolling friction in the case of a ballpoint pen or sliding friction in the case of a pencil.