Newton's Laws
An object in motion stays in motion and an object at rest stays at rest unless acted upon by an outside force.
Newton's First Law
How fast an object is traveling
Speed
What type of force slows down a skateboarder when he puts his foot down to brake?
Friction
What is the formula for speed?
distance รท time
My mass would change if I went to a different planet. True or False
False
The idea that more force is needed for increased acceleration or to move an object of greater mass (Force = Mass x Acceleration) is which law?
Newton's Second Law
Speed of an object in a certain direction
Velocity
If an equal force acts on a pencil and a text book, which one will have GREATER acceleration?
Pencil
If I traveled 100 miles in 2 hours, what was my speed?
50 mi/hour
Is it easier to stop a moving object that has MORE mass or LESS mass?
It would be easier to stop something of less mass.
Every action has an equal and opposite reaction.
Newton's Third Law
Attraction between all matter
Gravity
Which requires less force - lifting a 200 lb box or lifting a 250 lb box?
Lifting a 200lb box
If I am slowing down in the car, is that acceleration?
YES
Pushing two things of different masses with the same force will cause the lighter object to accelerate faster. This is an example of which of Newton's laws?
Newton's Second Law
The fact that a body keeps moving inside a car when the car stops is an example of which law?
Newton's First Law
The rate at which velocity (direction or speed) changes over time
Acceleration
True or False - If forces are balanced on an object, then there are no net forces on the object (or a net force of zero).
True
Turning a corner is an example of acceleration. True or False
True
Pushing on a closed door and the door pushing back on you with the same force is an example of which of Newton's laws?
Newton's Third Law
If I am sitting in my chair, gravity pushes down on me. What is the opposite and equal force in this scenario?
The chair pushing UP on me.
An objects ability to stay at rest or stay in motion.
Inertia
Which item would take the larger force to move - a car or a bicycle?
Is a person driving on a circular track at a constant speed accelerating?
Yes, acceleration is a change in speed and/or direction.
A car staying parked is an example of which of Newton's Laws?
Newton's First Law of Motion