MFE Gravity and Friction, Contact and Noncontact Forces

Front

What is the force of gravity acting on an object called?

Back

Weight

Front

What two factors affect the magnitude of the force of gravity between two objects?

Back

Mass and Distance

Front

What type of force is the force between the phone and the mount?

Back

Non-contact force

Front

What type of force is friction?

Back

Contact Force

Front

What is the primary reason a ball stops when kicked towards someone?

Back

Friction

Front

Define gravity.

Back

Gravity is the force that attracts two bodies towards each other, proportional to their masses and inversely proportional to the square of the distance between them.

Front

What is the difference between contact and non-contact forces?

Back

Contact forces require physical contact between objects, while non-contact forces act at a distance.

Front

Give an example of a non-contact force.

Back

Magnetic force is an example of a non-contact force.

Front

What is the role of mass in gravitational force?

Back

Mass determines the strength of the gravitational attraction between two objects; greater mass results in a stronger gravitational force.

Front

How does distance affect gravitational force?

Back

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