Energy
What is kinetic energy?
The energy of motion
What is mass?
Mass is the amount of matter in an object.
Define acceleration.
A change in velocity
Define Friction
friction resists motion and is generated when solid surfaces rub against each other.
A dog can sweat through which part of its body?
Paws
What is potential energy?
Energy based-on position
If an object's mass increases its inertia will
increase
Define velocity.
something's speed and direction
The third law states for every action
Cinderella lost her shoe from which foot?
left foot
What is thermal energy?
heat energy
Explain what inertia does.
If an object is moving its inertia tries to keep it moving, if an object is at rest an object's inertia tries to keep it at rest.
Fill in the blank:
Force = mass X __________
Identify the "action" and "reaction" in the following example.
At a party, Emma blows up a balloon and rather than tying it, points it at her sister and releases it.
The balloon starts to deflate and at the same time flies across the room.
The air leaving the balloon is the action, the balloon flying forward is the reaction.
Which NFL team has a logo only on one side of their helmet?
Steelers
As a ball rolls down a hill faster and faster how are the types of energy changing
Potential energy is changing to kinetic energy
Why do you sometimes fall if you are running really fast and then try to stop right away?
Your inertia wants to keep you moving forward so when you stop you can lose your balance.
If the same amount of force is applied to a bowling ball and ping pong ball which one will accelerate faster?
The ping pong ball
If the action and reaction are equal forces, then why does one object sometimes move more than the other?
While the forces are equal, there are other factors such as mass or friction that can influence the effect.
In NY it is illegal to __________ in an elevator. (this is legal otherwise for the most part)
talk
Friction turns the kinetic energy into thermal energy.
Give two examples of inertia that can occur when someone drives a car
answers will vary
Explain why if you drop two objects at the same time from the same height, the object with more mass will hit with more force.
Since they are going the same acceleration, the determining factor is mass. The object with more mass has to have more force to go at the same acceleration.
Explain how swimming is an example of the third law. Label what is the action and reaction.
In 1830 ketchup was sold as a
medicine