Motion & Forces
The rate of change of distance over time; measured in m/s.
What is speed?
The ability to do work; can be potential or kinetic.
What is energy?
This happens when light bounces off a surface.
What is reflection?
The flow of electric charge, measured in amperes.
What is current?
This force keeps planets orbiting the Sun.
What is gravity?
This law states that an object in motion stays in motion unless acted on by an external force.
What is Newton’s First Law?
This is calculated by force × distance.
What is work?
This phenomenon bends light as it passes into a new medium.
What is refraction?
The potential difference across a circuit component.
What is voltage?
The path a planet takes around the Sun.
What is an orbit?
This quantity is mass multiplied by acceleration.
What is force?
Energy of motion.
What is kinetic energy?
The distance between two wave crests.
What is wavelength?
Resistance is measured in this unit.
What are ohms?
Acceleration due to gravity on Earth (value).
What is 9.8 m/s²?
This type of force always pulls objects toward Earth at 9.8 m/s².
What is gravity?
This is the rate at which work is done.
What is power?
The number of wave cycles per second.
What is frequency?
In this type of circuit, current is the same everywhere.
What is a series circuit?
This is the amount of matter in an object.
What is mass?
A car goes from 0 to 20 m/s in 5 seconds. This is the term for its change in velocity.
What is acceleration?
Stored energy due to height above the ground.
What is gravitational potential energy?
Light travels fastest in this substance.
What is a vacuum?
This law states V = I × R.
What is Ohm's law?
This theory explains gravity as the curvature of spacetime.
What is general relativity?