Science Chapter 8

Question 0

Newton

Answer 0

A unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second.

Question 1

Force

Answer 1

A push or pull exerted on an object.

Question 2

Net force

Answer 2

The overall force on an object when all the individual forces acting on it are added together.

Question 3

Friction

Answer 3

The force that two surfaces exert on each other when they rub against each other

Question 4

Static Friction

Answer 4

Friction that acts between objects that are not moving.

Question 5

Fluid Friction

Answer 5

Friction that occurs as an object moves through a fluid.

Question 6

Rolling friction

Answer 6

Friction that occurs when an object rolls over a surface.

Question 7

Gravity

Answer 7

The attractive force between objects; the force that moves objects downhill.

Question 8

Mass

Answer 8

A measure of how much matter is in an object.

Question 9

Weight

Answer 9

A measure of the force of gravity acting on an object.

Question 10

Inertia

Answer 10

The tendency of an object to resist a change in motion.

Question 11

Momentum

Answer 11

The product of an object’s mass and velocity.

Question 12

Law of conservation of momentum

Answer 12

The rule that in the absence of outside forces the total momentum of objects that interact does not change.

Question 13

Free fall

Answer 13

The motion of a falling object when the only force acting on it is gravity.

Question 14

Satellite

Answer 14

Any object that orbits around another object in space.

Question 15

Centripetal force

Answer 15

A force that causes an object to move in a circle.

Question 16

Buoyant Force

Answer 16

The upward force exerted by a fluid on a submerged object.

Question 17

Sliding Friction

Answer 17

Friction that occurs when one solid surface slides over another.