Kinetic & Potential Energy
The energy an object has because it is moving
What is kinetic energy?
A push or a pull applied to an object
What is a force?
Distance traveled divided by the time it took to travel that distanc
What is speed
This famous law states that energy cannot be created or destroyed, only transformed from one form to another.
What is the Law of Conservation of Energy?
The two main factors that determine how much kinetic energy a moving object has.
What are mass and speed (or velocity)
The force that acts against gravity when an object is falling through the air.
What is air resistance (or drag)?
Stored energy that an object has because of its position, shape, or condition (like a roller coaster at the top of a hill)
What is potential energy?
he invisible force that pulls two objects toward each other, such as the Earth pulling down on your body.
What is gravity?
Newton’s First Law states that an object at rest stays at rest, and an object in motion stays in motion unless acted upon by an outside force. This tendency to resist a change in motion is called:
What is inertia
When you turn on a battery-powered flashlight, this energy transformation takes place.
What is chemical energy * electrical energy * light (and thermal) energy?
e type of potential energy stored in a stretched rubber band or a compressed spring.
What is elastic potential energy?
The overall force acting on an object after all the individual forces are combined together.
What is net force?
Where a roller coaster car has its greatest potential energy.
What is at the highest point (top of the hill)?
The force that resists motion when two surfaces rub against each other.
What is friction?
If a school bus hits a tiny mosquito, the force exerted by the bus on the mosquito is this compared to the force exerted by the mosquito on the bus
What is equal (Newton's Third Law)
When a car rolls down a hill, most of its potential energy turns into kinetic energy. Most of the remaining energy gets converted into this due to friction.
What is heat (thermal energy)
The type of potential energy stored in food, batteries, and gasoline
If a box is pushed to the right with 15 Newtons of force, and friction pushes back to the left with 5 Newtons, this is the net force.
What is 10 Newtons to the right?
Where a roller coaster car has its greatest kinetic energy.
What is at the bottom of the hill?
Forces that are equal in size and opposite in direction, resulting in no movement.
What are balanced forces?
The rate at which an object changes its position, which includes both speed and direction.
What is velocity
The scientific definition of "work" is when a force moves an object a distance. The ability to do work is called
What is energy?
If a bowling ball and a baseball are rolling down a hill at the exact same speed, this ball has more kinetic energy.
What is the bowling ball (because it has more mass)?
The type of friction you must overcome to get a heavy, resting object to start moving in the first place.
What is static friction?
A person running down the sidewalk possesses this specific type of energy.
What is mechanical kinetic energy?
The unit used to measure force, named after the scientist who formulated the laws of motion.
What is a Newton?
Between a toy car, a bike, a school bus, and an airplane, this object has the most inertia.
What is the school bus (due to having the most mass)?
Energy that travels in electromagnetic waves from the sun to the Earth is known as this.
What is radiant energy (or light energy)?
f you double the height of an object, you double its gravitational potential energy. If you double its speed instead, its kinetic energy increases by this many times.
What is four times?
While mass stays the same everywhere in the universe, this measurement changes depending on the pull of gravity in your location.
What is weight?