Newtons Laws
This law states that an object at rest will stay at rest, and an object in motion will stay in motion with the same speed and in the same direction, unless acted upon by an unbalanced force.
What is Newton's First Law?
This is defined as the ability to do work.
What is energy?
This fundamental principle asserts that energy cannot be created or destroyed, only transformed from one type to another.
What is the Law of Conservation of Energy?
This is a repeating disturbance that transfers energy from one place to another without transferring matter.
What is a wave?
This famous scientist is known for his theories of relativity and the equation E=mc².
Who is Albert Einstein?
Often called the Law of Acceleration, this law is represented by the formula F = ma.
What is Newton's Second Law?
This law states that an object's acceleration is directly proportional to the net force acting on it and inversely proportional to its mass.
What is Newton's Second Law?
At the very top of its swing, a child on a playground swing momentarily has its maximum amount of this type of energy.
What is potential energy (or gravitational potential energy)?
The highest point of a transverse wave, or the region where particles are most crowded in a longitudinal wave.
What is a crest (or compression)?
In Einstein's famous E=mc² equation, the 'c' stands for the speed of this, the fastest thing we know.
What is light?
When a swimmer pushes water backward, the water pushes the swimmer forward. This illustrates which of Newton's Laws?
If a 5 kg ball is lifted 10 meters off the ground, this is its gravitational potential energy (using g=10 m/s²).
What is 500 Joules?
When a battery powers a flashlight, chemical energy stored in the battery is converted into electrical energy, and then into these two forms of energy by the bulb.
What are light and thermal (or heat) energy?
These waves, like light and radio waves, can travel through the vacuum of space.
What are electromagnetic waves?
This "particle of light" carries electromagnetic energy and has no mass.
What is a photon?
A 100 kg person accelerates at 2 m/s² due to a net force. According to Newton's laws, this is the magnitude of that net force.
200 N
When you push off a wall, and the wall pushes back on you with an equal and opposite force, you are demonstrating this specific Newton's Law.
What is Newton's Third Law?
In an ideal, frictionless system like a perfectly elastic spring, the total amount of this type of energy remains constant as the spring compresses and expands.
What is mechanical energy?
If a wave has a frequency of 10 Hertz and a wavelength of 3 meters, this is its speed.
What is 30 meters per second? (v=fλ=10 Hz×3 m=30 m/s)
This is the process of splitting an atom's nucleus, which powers nuclear reactors and atomic bombs.
What is fission?
This property of matter is a measure of an object's resistance to a change in its state of motion, directly related to its mass.
What is inertia?
The rate at which work is done, or energy is transferred, often measured in watts.
What is power?
If you launch a ball straight up, its total mechanical energy at any point during its flight (ignoring air resistance) is equal to the sum of its kinetic energy and this other type of energy at that specific moment.
What is gravitational potential energy?
This phenomenon explains why a siren sounds higher pitched as it approaches you and lower pitched as it moves away.
What is the Doppler Effect?
The strange idea that tiny things like light can sometimes act like a wave and sometimes like a tiny particle is called this 'duality'.
What is wave-particle duality?