If a magnet repels a metal object what can you say about the pole of the magnet and the pole of the object?

a. the poles are opposite.
b. the poles change.
c. the poles are not charged.
d. the poles are the same.

The correct answer is option D. The poles are the same.

Explanation:

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Let's solve this!

For an object to be attracted to a magnet, the charges must be opposite. But when, otherwise, they repel, it means that the charges (the poles) are the same.

In this case we conclude that the correct answer is option D. The poles are the same.

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.