Speed & Acceleration
What do you call the change of velocity per unit of time?
Energy stored in the position or condition of an object
Potential Energy
What do you call the measure of the quantity of matter in an object?
Mass
What is it called when something is "pulled toward each other"?
Attraction
What do you call when one object hits another object?
Collision
What do you call the distance traveled by an object in a unit of time?
Speed
Energy in motion
Kinetic Energy
What do you call the measurement of force of gravity from a massive object pulling another object toward it?
Weight
What do you call a force of attraction between two masses?
Gravity
What force decelerates an object?
Friction
What do you call a negative change of velocity per unit of time?
Decceleration
When is an object at it's greatest potential energy?
The higher it is from the Earth's surface
What do you call the interaction between objects? A push or pull.
Force
What is the unit that describes the measurement of force (Unit used in weight)
Newtons (N)
What head injury can result from a collision?
Concussion
What is the acceleration of gravity on Earth?
Constant Speed
When is kinetic energy at its greatest?
What do you call the force exerted by air molecules on objects moving through air?
Air resistance
What is the acceleration of gravity on Earth?
9.8 m/s2
or
1 g
When objects collide, what happens to the kinetic energy and positions of the vehicles?
The kinetic energy is transferred and the car's will change direction.
What do you get when you divide the total distance by the total time?
Ex: Finding the mean
The Average Speed
What two forces act on a soccer ball sitting on the ground?
The Earth's force of gravity pulling the soccer ball downward.
The upward force of the ground pushing up on the ball.
If you were on the moon, is your mass or weight affected? Why?
2 part answer
Your weight is affected due to the moon's gravitational force.
What is the equation used in Newton's 2nd Law of Motion?
F=ma or a=F/m
Which Newton's Law of Motions describes when a person hits a billiard ball with a pool stick to knock another ball into the pocket?
Newton's 3rd Law: For every action there is an equal and opposite reaction.