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Newton's Laws of Motion, Momentum
Speed, Graphing Data
Acceleration, Net Forces, Forces
100
What is net force?
The combination of all the forces acting on an object
100
Define speed
A measure of the distance an object travels per unit of time
100
Define acceleration
A measure of the change in velocity during a period of time
200
Briefly describe Newton's First Law of Motion
An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
200
What are the 3 types of speed?
Constant speed, average speed and instantaneous speed
200
What is the formula for finding acceleration?
Acceleration (in m/s²)= final speed - initial speed / total time
300
Briefly describe Newton's Second Law of Motion
Acceleration is produced when a force acts on a mass. The greater the mass of the object being accelerated, the greater the amount of force needed to accelerate the object.
300
What is the formula for average speed?
Average speed (in m/s)= total distance (in m) / total time (in s) or v= d/t
300
Define net force
The combination of all the forces acting on an object
400
Briefly describe Newton's Third Law of Motion
For every action there is an equal and opposite reaction.
400
Give an example of force pair
A boy jumps off a boat into the water. The force pair is the force of the boy applies to the boat and the force that the boat applies to the girl
500
What is the formula for finding momentum?
Momentum = mass • velocity or p = m • v
500
What are the five steps of finding average speed using a DISTANCE-TIME GRAPH
Step 1: Choose one point on the line Step 2: Choose another point on the line Step 3: Find the time difference of the points Step 4: Find the distance difference of the points Step 5: Divide the difference in distance by the difference in time
500
Define the two types of force
Contact force: a push or a pull on one object by another that it touching it Non-contact force: a force that one object can apply to another object without touching it