Newton's 1st Law of Motion
Newton's 2nd Law of Motion
Force
Measuring Motion
Miscellaneous
100
What math operation do we use for forces acting in the same direction?
Addition.
100
What is Newton's 2nd Law of Motion?
Force = Mass x Acceleration
100
What is a force?
Push or pull.
100
What is the difference between speed and velocity?
Velocity is speed in a given direction.
100
What force is acting on every object in existance?
Gravity.
200
What math operation do we use for forces acting in opposite directions?
Subtraction.
200
As force _________, acceleration increases; as force _________, acceleration decreases.
Increases; decreases.
200
What is net force?
All of the combined forces acting on an object.
200
What does a flat horizontal line represent on a distance-time graph?
No movement.
200
What is the specific term for an object that is slowing down?
Deceleration.
300
What is the alternative name for Newton's 1st Law of Motion?
The Law of Inertia.
300
As mass _________, acceleration increases; as mass _________, acceleration decreases.
Decreases; increases.
300
What is inertia?
An object's resistance to a change in motion.
300
What does a flat line mean on a speed-time graph?
Constant speed.
300
What does a displacement of zero mean?
The object stopped at the same position it started at.
400
Provide the FULL definition for Newton's 1st Law of Motion.
An object at rest stays at rest unless acted upon by an outside force.
An object in motion stays in motion unless acted upon by an outside force.
400
Provide a unit example for acceleration.
Answers may vary.
m/s^2
400
Unbalanced forces result in ____________; balanced forces result in ___________.
Movement; no movement.
400
What does a curved line represent on a distance-time graph?
Acceleration.
400
What is acceleration?
A change in velocity; a change in speed and/or direction over time.
500
How does mass influence an inertia?
The more massive an object, the more inertia it will experience. The less massive an object, the less inertia it will experience.
(Think of our dead pet cemetery.)
500
What are the three ways an object can accelerate?
Increase in speed, decrease in speed, or a change in direction.
500
Interpret the diagram. Be sure to address ALL of the forces acting on the box.
Gravity is pulling down at 100N, and the equal and opposite reaction is pushing up at 100N. The man on the left is pushing to the right at 50N while the man on the right is pushing to the left at 100N.
Ultimately, the box will move to the left with a net force of 50N.
500
What is the difference between distance and displacement?
Distance is how far an object travels overall; displacement is an object's final position compared to its initial position.
500
What is Newton's 3rd Law of Motion?
Every action has an equal and opposite reaction.