Ohio 8th Grade Physical Science Review

Front

What is magnetism?

Back

Magnetism is a physical phenomenon produced by the motion of electric charge, which results in attractive and repulsive forces between objects.

Front

What is a balanced force?

Back

A balanced force occurs when two forces acting on an object are equal in size but opposite in direction, resulting in no net force and no change in motion.

Front

How does distance affect the pull of gravity?

Back

As the distance between two objects increases, the gravitational pull between them decreases.

Front

What is static electricity?

Back

Static electricity is the buildup of electric charge on the surface of objects, often caused by friction.

Front

What is an electromagnet?

Back

An electromagnet is a device made of coils of wire with an electric current passing through it, generating a magnetic field.

Front

What is the difference between conduction and induction?

Back

Conduction is the transfer of heat or electricity through direct contact, while induction is the process of generating an electric current in a conductor by changing the magnetic field around it.

Front

What is friction?

Back

Friction is the resistance that one surface or object encounters when moving over another, often causing heat and wear.

Front

What is net force?

Back

Net force is the overall force acting on an object after all the individual forces are combined.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies toward each other, depending on their masses and the distance between them.

Front

What is the role of a generator?

Back

A generator converts mechanical energy into electrical energy using electromagnetic induction.