Year 9 Magnets revision Quiz

What are the units of a force?

• Newton

• Joule

• Watt

• Ampere

What do we use to measure a force?

• Anemometer

• Barometer

• Force meter

• Thermometer

What is a contact force?

• A force that can act at a distance

• A force that only acts when objects are touching

• A force that repels objects

• A force that is always attractive

What is a non-contact force?

• A force that requires physical contact to act

• A force that can act at a distance

• A force that is always repulsive

• A force that is measured in joules

Is force a scalar or a vector? Why?

• Scalar, because it has magnitude only

• Vector, because it has magnitude and direction

• Scalar, because it has direction only

• Vector, because it has magnitude only

Which of the following metals can be attracted by a magnet?

• Copper (Cu)

• Silver (Ag)

• Iron (Fe)

• Zinc (Zn)

What is a permanent magnet?

• A material that becomes a magnet only when electric current is applied

• A material that temporarily becomes a magnet when placed in a magnetic field

• A material that produces its own magnetic field

• A material that can only attract other magnets, not metals

What is an induced magnet?

• A magnet that always retains its magnetic properties

• A material that becomes a magnet when it is placed in a magnetic field

• A magnet that can induce electricity

• A magnet that can only attract, not repel

Refer to diagram A for the setup of the experiment. What two forces act on the paper cup and its contents to keep it in this position?

• A) Magnetic force and gravitational force

• B) Frictional force and gravitational force

• C) Magnetic force and electric force

• D) Electric force and gravitational force

What is the region around a magnet where a force acts on another magnet or on a magnetic material called?

• Magnetic pole

• Magnetic field

• Magnetic force

• Magnetic wave