Not So Fast
What happens to the speed of an object if there is a horizontal line on a distance-speed graph?
The object stopped moving
What is the unit that expresses force?
Newton
Are any of the forces on the box balanced? How do you know?
Left and right-- 200-200= 0N
What is Newton's 2nd law?
F=m x a
What is happening to the speed of an object if the line becomes steeper on a distance-time graph?
The speed increases
What is the term that means an object is traveling around another object in space?
Orbit
Are any of the forces acting on the box unbalanced? How do you know?
The up and down-- 150-50= 100N
Newton's 1st Law
An object will stay at rest or an object will stay in motion until acted upon by an outside force
How far it traveled in a specific amount of time.
What is the term for when speed is in a specific direction?
Velocity
Describe the motion of the box
Up 50 N
Newton's 3rd Law
Every action has an equal and opposite reaction
In baseball, a batter hits the ball. It travels in a horizontal line but also falls downward. Why?
Gravitational force pulls it down.
What is the terms for when all objects are gravitationally attracted to each other?
The Law of Universal Gravity
What two factors does the magnitude (size) of the gravitational force between two objects depend on?
Mass and distance
Explain how baseball works with Newton's 3rd law of motion.
The ball and the bat hit, but because the baseball has less mass it flies away in the opposite direction.
What is the formula for acceleration?
Final acceleration - starting acceleration/ time
What is the term for when an object travels in a curved path, but the speed stays the same?
Centripetal acceleration
Why don't a bowling ball and a feather land at the same time when dropped?
The bowling ball has more mass
Explain how wearing a seatbelt relates to Newton's 1st law of motion.
The seat belt keeps you from moving forward.