Electric & Magnetic Forces
This is the rule of attraction and repulsion for magnets and electrical charges.
Opposites attract and like repels.
This scientist developed the initial idea of gravity that we know today.
Who is Sir Issac Newton?
The formula used to calculate the kinetic energy of an object in motion.
KE = 1/2 mv2
What happens to gravitational force if an objects mass increases?
A push or a pull that can change the motion of an object.
What is Force?
Magnets contain these types of poles.
What is a north pole and a south pole?
This is the type of force that gravitational forces can be classified as.
What is an at-a-distance force?
This is the units in which Kinetic Energy is measured.
What is Joules (J)?
What happens to gravitational force if the distance between two objects increases?
The gravitational force between the objects decreases.
A measure of how much matter is present in an object.
What is mass?
This occurs when there is an imbalance of positive and negative charges on the surface of an object. This sometimes causes objects to attract one another, like a balloon and a wool sweater.
What is static electricity?
These are the two factors that affect gravitational force.
What are mass and distance?
This variable has the largest effect on an objects Kinetic Energy.
What happens to the strength of an electromagnet if you increase the number of times the wire is coiled around the metal?
The magnetic force becomes stronger.
Scientific law stating that energy can be neither created nor destroyed but just changes form.
What is The Law of Conservation of Energy?
When the north pole of one magnet is brought near the north pole of another magnet, this happens.
What is the magnets repel?
Ocean tides are most strongly affected by this.
What is the moon?
Two cars have the same mass. Car A is traveling at 50 mph. Car B is traveling at 45 mph. This car has the greater Kinetic energy.
What is Car A?
What happens to Kinetic Energy if the speed of an object doubles?
It increases. (Bonus: It quadruples)
A directional flow of electrical charge through an object or medium.
What is current?
A changing magnetic field inside a coil of wire produces this, which is the basic principle behind generators.
What is an electric field?
An object has a mass of 10 kg. On planet Gloob, the acceleration due to the force of gravity is 6 m/s2. What is the weight, in Newtons, of this object on planet Gloob?
What is 60 Newtons.
As a roller coaster car starts at the top of a tall hill, it has maximum potential energy. As it races down the hill and reaches the bottom at its fastest speed, this energy transformation has occurred.
What is potential energy transforming into kinetic energy?
What happens if an electrical current is flowing through a wire?
A magnetic field is created around that wire.
The area around a magnet or moving electrical charge that can exert a magnetic force.
What is magnetic field?