Electric, Magnetic, and Gravitational Field Review

Front

What is a magnetic field?

Back

A magnetic field is a region around a magnet where magnetic forces can be detected. It is represented by field lines that show the direction and strength of the magnetic force.

Front

What happens when two magnets with opposite poles face each other?

Back

They attract each other.

Front

What happens when two magnets with like poles face each other?

Back

They repel each other.

Front

What is gravitational force?

Back

Gravitational force is the attraction between two masses. It is what keeps planets in orbit around the Sun.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is the formula for calculating weight?

Back

Weight (W) = mass (m) × gravitational acceleration (g). On Earth, g is approximately 9.8 m/s².

Front

What is the role of speed in planetary motion?

Back

The speed of a planet in its orbit prevents it from falling into the Sun due to the balance between gravitational pull and inertia.

Front

What is the significance of a magnetic field's strength?

Back

The strength of a magnetic field determines how strongly it can attract or repel objects within its range.

Front

What is the principle of superposition in magnetic fields?

Back

The principle of superposition states that the total magnetic field created by multiple magnets is the vector sum of the individual fields.

Front

How do you determine if an object is magnetic?

Back

An object is magnetic if it is attracted to a magnet or can be magnetized.