In a system using two repelling magnets, how does decreasing the initial distance between the magnets affect the forces involved?

It decreases the repulsive force between them.

It has no effect on the repulsive force.

It increases the repulsive force between them.

It changes the magnetic force from repulsive to attractive.

An experiment with a magnetic launcher results in a very slow launch speed. Which of the following is the most likely cause?

The magnets were initially placed very close together.

The initial stored kinetic energy was too high.

The initial stored potential energy was low.

The energy was converted from kinetic to potential.

Kinetic energy is converted into potential energy.

Magnetic potential energy is converted into the kinetic energy of the spacecraft.

Electrical energy is converted directly into kinetic energy.

Thermal energy is converted into potential energy.