Review - Part 9

What do you call the application of push/pull to an object?

• force

• friction

• inertia

• work

It is a force that acts on an object without coming physically in contact with it.

• Contact force

• Noncontact force

It is a force applied by an object in contact with another object.

• Contact force

• Noncontact force

Frictional force and air resistance are examples of _____________.

• Contact forces

• Noncontact forces

This type of contact force acts on objects as they travel through the air.

• Air resistance force

• Frictional force

• Gravitational force

• Magnetic force

This type of contact force occurs when an object moves or tries to move across a surface and a surface opposes its motion.

• Air resistance force

• Frictional force

• Gravitational force

• Magnetic force

Gravitational force and magnetic force are examples of _____________.

• Contact forces

• Noncontact forces

This type of noncontact force pulls an object downward without any direct contact to it.

• Air resistance force

• Frictional force

• Gravitational force

• Magnetic force

This type of noncontact force refers to the attraction or repulsion force usually associated with electrical currents o magnets. This force pulls or pushes objects without touching them.

• Air resistance force

• Frictional force

• Gravitational force

• Magnetic force

Identify what type of forces are applied in this example. "The feather is falling on the ground." (Select 2 answers)

• Air resistance force

• Frictional force

• Gravitational force

• Magnetic force