Forces

Question 1

Force

Answer 1

Push or pull one body exerts on another.

Question 2

Newton’s 1st Law

Answer 2

An object moving keeps moving at that velocity.

An object at rest stays at rest unless acted upon by a net force.

Question 3

Inertia

Answer 3

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

Question 4

Net Force

Answer 4

Combination of all forces that act on an object.

Question 5

Gravity

Answer 5

Every object exerts a force on every other object. Felt as a pull.

Question 6

Mass

Answer 6

The amount of matter or”stuff” an object has. Measured in Kilograms.

Question 7

Weight

Answer 7

Measure of force of gravity on an object’s mass: how hard the object is pulled toward the center of Earth

Question 8

Friction

Answer 8

Opposes motion between two surfaces that are touching each other.

Question 9

Newton’s 2nd Law of Motion

Answer 9

The net force acting on an object causes the object to accelerate in relation to the size of the force and the mass of the object.

Question 10

Static Friction

Answer 10

Resists getting an object moving. (This is when the objects are not moving)

Question 11

Kinetic Friction

Answer 11

Resists keeping an object moving. (Happens while it is moving)

Question 12

Newton’s 3rd Law of Motion

Answer 12

To every action there is an equal (in size) and opposite (in direction) reaction force.

Question 13

Projectile

Answer 13

Anything that’s thrown or shot through the air.

Question 14

Centripetal Force

Answer 14

Force acting toward the center of a curved or circular path.

Question 15

Momentum

Answer 15

Mass on the move: Force required to stop a moving object. Velocity X mass