Motion & Graphs
The total path length covered by an object is called this.
What is Distance?
This property is a measure of an object's resistance to changes in its motion.
What is Inertia?
This is the rate at which work is done, measured in Watts.
What is Power?
The energy stored in an object due to its position or height.
What is Potential Energy (PE)?
This is the system of agreed-upon units used in most of the world for physics measurements.
What is the SI (or metric) System?
This physical quantity includes both magnitude and direction.
What is a Vector?
The force of air resistance pushing up on a falling object eventually causes it to reach this constant speed.
What is Terminal Velocity?
A machine that consists of two or more simple machines is called this.
What is a Compound Machine?
This law states that energy cannot be created or destroyed, only converted from one form to another.
What is the Law of Conservation of Energy?
The Law of Universal Gravitation states that the gravitational force between two objects is inversely proportional to the square of the distance between them.
What is 1/r^2 (or Inverse Square Law)?
On a position-time graph, the slope represents this physical quantity.
What is Velocity (or Speed)?
A push or pull resulting in a net force of zero is an example of this type of force.
What are Balanced Forces?
This type of lever, such as a wheelbarrow, has the resistance force located between the fulcrum and the effort force.
What is a Second-Class Lever?
This type of energy is possessed by objects in motion.
What is Kinetic Energy (KE)?
When the friction of a box sliding across a floor is 15 N and the push force is 20 N, the net force is this value.
What is 5 N (in the direction of the push)?
This is the rate at which an object changes its velocity, measured in units like m/s^2
What is Acceleration?
This fundamental force is responsible for the orbiting of planets and stars.
What is Gravity?
This is the ratio of the output force to the input force for a machine.
What is Mechanical Advantage?
This is the equation used to calculate Gravitational Potential Energy.
What is PE = mgh?
The curved path followed by a ball thrown across a field is an example of this type of motion.
What is Projectile Motion?
This term describes the speed of an object at a single moment in time, as opposed to over an entire trip.
What is Instantaneous Velocity?
The scientific law stating that for every action, there is an equal and opposite reaction.
What is Newton's Third Law?
A spinning or rotating version of an inclined plane, often used to hold things together.
What is a Screw?
If an object's speed doubles, its kinetic energy increases by this factor. (Hint: The equation is KE = 1/2 mv^2
What is Four (2^2)?
The difference between mass and weight is that weight is the force of gravity on an object, and mass is a measure of this.
What is the Amount of Matter (or Inertia)?