Net Force
This is the term for the sum of all forces acting on an object.
What is Net Force?
This is the definition of acceleration: the rate of change of ________ over time.
What is Velocity?
In physics, a force is simply defined as one of these two actions upon an object.
Push or Pull
The Greek letter μ (Mu) is used to represent this specific "coefficient."
What is Friction?
What equation can be used to find ΣF?
Answer will vary.
If a box is pushed 10 N to the right and 10 N to the left, the net force is this value.
What is 0 Newtons? (or Balanced)
On Earth, the acceleration due to gravity is approximately this value.
What is 9.8 m/s2
This is the standard unit of measurement for force.
Newton
This type of friction, represented by μs, must be overcome to get a stationary object moving.
What is Static Friction?
This is the formula used to calculate the Weight (FG) of an object on Earth.
Answer will vary
Net Force is equal to mass multiplied by__________.
What is Acceleration?
A car goes from 0 m/s to 30 m/s in 6 seconds. What is its average acceleration?
5 m/s2
This type of force acts between two surfaces sliding, or trying to slide, across each other.
What is Friction?
This type of friction, represented by μK, acts on objects that are already in motion.
What is Kinetic Friction?
What equation can we use to find μ?
Answer will vary
If a 5 kg object is accelerating at 2 m/s2, this is the total net force being applied.
What is 10 Newtons?
This is the acceleration of a 10 kg object being pushed by a 50 N net force.
This specific force pulls all objects toward the center of the Earth.
What is Gravity?
If the Force of Friction is 20N and the Normal Force is 100N, μ is equal to this value. (Solve for μ)
What is 0.2?
To find the Net Force when two forces are acting in opposite directions, you use this mathematical operation.
Subtraction
When the net force on an object is zero, the object is said to be in this state of physical balance.
What is Equilibrium?
A 1,200kg car experiences a net force of 3,600N. What is the resulting acceleration?
3 m/s2
What diagram is used to draw forces?
Free Body Diagram
To calculate μ, you divide the Force of Friction by this force, which acts perpendicular to the surface.
What is the Normal Force (Fn)?
If you are given μ and the FN, what equation can you use to solve for FF?
FF = FN x μ