Describing Motion and Force
What is a reference point?
The definition of this word is: the distance an object travels per unit of time.
What is speed?
There are this many of Newton's Laws.
What is three
Rubbing two objects together creates this.
What is friction?
The definition of average.
What is in the middle or normal?
The measurement of the strength of a force.
What is a Newton?
The three changes in acceleration.
What are increase in speed, decrease in speed, and change in direction?
Newton's first law explains this.
What is inertia?
This measurement never changes, not matter where you go.
What is mass?
Newton's formula to calculate force.
What is net force = mass x acceleration
Contact forces are described as this.
What is when one object touches another object?
The formula to calculate acceleration is
What is Acceleration = final speed - initial speed / time?
Newton's second law is this.
What is a force gives an object acceleration, the acceleration depends on the object's mass.
List the four types of friction.
What are rolling, sliding, static, and fluid?
The formula to calculate acceleration.
Gravity pulls you towards earth. It is this kind of force.
What is noncontact?
The speed you are traveling right now.
What is instantaneous speed?
Newton's third law explains this.
What is for every action, there is an opposite and equal reaction?
The acceleration due to gravity at Earth's surface is this measurement.
What is 9.8m/s2?
Not fixed, not absolute.
What is relative?
A force pushes 6N to the right and an opposite force pushes 2N to the left. The resulting force is this.
What is 4N to the left?
A straight line on a graph measures this.
What is speed and time?
Extracted from, drawn out of, or obtained from a source.
What is derived?
The mass of a man is 40kg on Earth, his weight his 185 lbs. His weight on the moon is 1/6.
What is 30.8 lbs?
The formula to calculate slope.
What is slope = rise / run?