Friction And Gravity

Question 1

_ is a result of an interaction between two objects.

Answer 1

Force

Question 2

_ is a contact force that acts between objects that are in contact. This kind of force acts opposite to the moving object.

Answer 2

Friction

Question 3

There is friction because the surface of objects has _ or _

Answer 3

Bumps or grooves

Question 4

_ exists between an object that is stationary or not moving and the surface where it is resting upon.

Answer 4

Static friction

Question 5

_ is also known as sliding friction.

Answer 5

Kinetic friction

Question 6

_ exists between the ball, tire, wheel, or any round object and the surface where it rolls.

Answer 6

Rolling friction

Question 7

_ exists between a moving object and a fluid, either gas or liquid.

Answer 7

Fluid friction

Question 8

_ is a noncontact force that pulls objects together.

Answer 8

Gravity

Question 9

Anything that has _ or the amount of matter in an object, has gravity too.

Answer 9

Mass

Question 10

The force of gravity that acts on an object is called _.

Answer 10

Weight