Forces and Energy Quiz

When you push a shopping cart, the force you apply is:

• A non-contact force

• A contact force

• Gravity

• Magnetic force

Which force allows a magnet to attract a paper clip without touching it?

• Friction

• Air resistance

• Magnetic force

• Normal force

Air resistance is considered a:

• Contact force, since air particles touch the object

• Non-contact force

• Gravitational force

• Electrical force

What type of force causes your hair to stand up after rubbing it with a balloon?

• Gravitational

• Electrostatic (non-contact)

• Frictional (contact)

• Normal

If you hold a ball in your hand, the support your hand provides is a:

• Non-contact force

• Magnetic force

• Normal contact force

• Gravitational force

Dropping a ball involves which pair of forces acting on it?

• Gravity (non-contact) pulling down and air resistance (contact) pushing up

• Friction pushing up and gravity pulling down

• Only magnetic forces acting

• Only friction acting sideways

To lift an object, you must apply a force greater than:

• Friction

• Gravity

• Magnetism

• Air resistance

If two magnets repel each other, it shows:

• A contact force is pushing them apart

• A non-contact force (magnetic) is acting between them

• No forces at all

• Only friction is working

If you slide a book across a table, it slows down because of:

• Gravity

• Friction (contact force)

• Magnetism

• No force at all

Electric charges can attract or repel without touching because electricity is:

• A contact force

• A non-contact force

• A frictional force

• Always zero