Physics - Newton's 2nd & 3rd Laws - Vocabulary Focused

Question 1

acceleration = force divided by mass

Accepted Answer

Newton's 2nd law

Question 2

The ordinate is the y-coordinate in a point (x, y). For the point (8, –2) the ordinate is ___.

Accepted Answer

-2

Question 3

To every action there is always an equal opposing reaction

Accepted Answer

Newton's 3rd law

Question 4

Who's quote? "Tact is the knack of making a point without making an enemy."

Accepted Answer

Isaac Newton

Question 5

One newton per square meter

Accepted Answer

Pascal

Question 6

movement backwards, usually from some force or impact

Accepted Answer

recoil

Question 7

two values change in opposite directions

Accepted Answer

inverse

Question 8

acts on materials that are in contact with each other

Accepted Answer

friction

Question 9

Force = mass x acceleration

Accepted Answer

Newton's 2nd law

Question 10

Mass times gravity

Accepted Answer

weight

Question 11

What two things does air resistance depend on?

Accepted Answer

the object's speed and area

Question 12

In a ________ system, objects neither enter nor leave the system

Accepted Answer

closed isolated

Question 13

speed at which the acceleration of a falling object is zero because friction balances weight

Accepted Answer

terminal speed

Question 14

two types : sliding and static

Accepted Answer

friction

Question 15

the force on a body due to the gravitational attraction of another body

Accepted Answer

weight

Question 16

forces that act simultaneously

Accepted Answer

Action and reaction forces

Question 17

a push or a pull

Accepted Answer

force

Question 18

the only force acting on the object is gravity

Accepted Answer

free fall

Question 19

refers to how much stuff is present in the object

Accepted Answer

mass

Question 20

upward reaction force

Accepted Answer

lift

Questions 20