Motion Basics
Force that pulls a smaller object towards a much larger object
Gravity
Which has more potential energy: a ball at the top of the Eiffel Tower or a ball on the floor of the classroom
Ball on top of the Eiffel Tower
Which has more kinetic energy: a parked semi truck or a car going 70 mph
Car going 70 mph
In the lab "slingshot physics", Ms. Novak did not give out supplies for all students to perform it individually. Why was that?
She feared a war of slingshots would break out
A _______ is an object that attracts iron and other metallic materials similar to iron.
Magnet
Energy of an object that is due to motion
Kinetic energy
True or false: a ball has no energy when it is sitting untouched on the floor
False
When mass is halved, kinetic energy is
Halved
In the lab "slingshot physics", what happened to the energy in the rubber band as it was pulled back further?
The elastic potential energy increased the further it was pulled
What are the two poles that a magnetic field has?
Energy of an object that is due to position
Potential energy
Which has more elastic potential energy: a rubber band stretched back 1 cm or a rubber band stretched back 4 cm
4 cm
When mass is doubled, kinetic energy is
Doubled
In the lab "slingshot physics" with the nickel, what type of potential energy was demonstrated?
Elastic potential energy
_______ is the transfer of energy to an object by a force that makes an object move in the direction of the force.
Work
Kind of potential energy that is increased when a rubber band is stretched
Elastic potential energy
If Ms. Novak threw a basketball in the air, where in the arc would it have the MOST potential energy?
When speed is halved, kinetic energy is
Decreased by a factor of 4
In the lab "slingshot physics", did the distance traveled increase linearly with the amount the rubber band was pulled back?
No, the increase was exponential
The sum of potential and kinetic energy is called:
Mechanical energy
Does a backpack full of books or an empty backpack have more potential energy?
Full of books
If Ms. Novak decided to go cliff diving, would she have more potential energy standing perfectly still at the top of the cliff or 1 second after she jumped off?
Standing at the top
When speed is doubled, kinetic energy is
Increased by a factor of 4
Even though the washer drop lab last week had to do with kinetic energy, what can be concluded about the effect of potential energy?
Higher heights = higher potential energy
While potential energy can turn into kinetic energy in a system, energy can never be destroyed. This is due to the law of ________ of ___________
Conservation of energy