Competency #1
Answer and Explanation
Gravity is a force that occurs between any two masses. [could have also answered “two objects,” “two particles,” etc.]
Air resistance is a force that always act in a direction opposite to the motion.
The support force occurs perpendicular to the surface the object is contacting.
A hand exerts a/an applied force to a baseball that lasts only as long as the hand is in contact with the ball.
Friction is a force that depends on the textures of the surfaces and how tightly pressed the surfaces are to each other.
© 2008 Anne Arundel Community College