Energy
The energy of motion.
What is kenetic energy?
A compass behaves as it does because the needle acts as a ________.
What is a magnet?
This is where magentic field lines are closest together.
What is the poles?
This creates the magnetic field around the Earth.
What is liquid iron core?
These are lines scientists use to see a magnetic field.
What are magnetic field lines?
This happens when adding a force to energy.
What is convert?
A magnet is any material that attracts or contains __________.
What is iron?
Jeffrey moves a magnet toward another magnet that can not move (opposite poles are facing each other). The potential energy in the system of magnets will ________.
What is a decrease?
This is also known as stored energy.
What is potential energy?
The person gains this energy when they step or jump.
What is kinetic energy?
One stationary magnet has _______ potential energy.
What is zero?
Julia puts two magnetic toy trains very close to each other on a track, with two like poles facing each other. This will happen next.
What is they will move away from each other or repel?
An engineer is investigating potential energy with two identical magnetic roller coaster cars on different sides of a centre magnet that cannot move. The engineer will move only one car. Car 1 is 5 spaces away from a repelling pole, and car 2 is three spaces from a repelling pole. This movement will result in the largest increase in potential energy.
What is car 2?
Two same-pole magnets are held close to each other. When they are let go, they will do this.
What is repel?
There are two parts to a magnetic system; they are.
What are two magnets?
A spaceship is travelling through space. Suddenly, its speed increases. The kinetic energy of the spaceship ______.
What is increases?
Ramon puts two magnetic toy trains very close to each other on a track, with two like poles facing each other. This will happen next.
What is the trains will move toward each other?
Two magnets facing each other and the magnetic lines connected will do this __________.
What is attract?
Cherise sets identical magnetic carts on two tracks. At the end of each track is a large magnet that cannot move. Cherise can move one car. Car 1 is four spaces away from the magnet; Car 2 is two spaces away from the magnet. This would cause an increase in potential energy.
What is move car 2 one space?
Two magnets are held in place; their magnetic field lines do not touch. When released, they will do this.
What is repel?
This happens to the energy in a system of magnets when magnetic force causes two magnets to move.
What is potential energy changes to kinetic energy?
Potential energy is stored in the _____ field.
What is magnetic?
When the skydiver gains kinetic energy, they also gain this.
What is speed?
The gymnast jumps on the trampoline; they push against this force.
What is gravitational force?
This is why a compass needle points north.
What is Earth's magnetic field?