Physics Chapter 3

Question 1

Torque

Answer 1

Product of force and distance from the pivot measured perpendicularly to the force vector.
(Newton-Meter)

Question 2

Lever Arm

Answer 2

Distance from the pivot

meters

Question 3

Force

Answer 3

Push or pull on an object (Newton)

Question 4

Mass

Answer 4

The amount of matter an object has

kg

Question 5

Acceleration

Answer 5

Change in velocity (change in distance over time) over the change in time
(m/s^2)

Question 6

Coefficient of Friction

Answer 6

Amount of interaction between two surfaces

unitless

Question 7

Spring Constant

Answer 7

How much force a string needs to stretch or compress (n/m)

Question 8

Gravitational Field Constant

Answer 8

Proportion of masses’ attraction

N*m^2/kg^2

Question 9

Gravitational field strength

Answer 9

How much force a body will experience in a gravitational field
(m/s^2)

Question 10

Weight

Answer 10

Force acting on mass due to gravity

kg*m/s^2

Question 11

Velocity

Answer 11

Change in distance over time

m/s

Question 12

Distance

Answer 12

Total amount of movement an object does

m

Question 13

Newton’s first law

Answer 13

Law of Inertia
- Objects at rest stay at rest…
more mass = more inertia

Question 14

Inertia

Answer 14

Inertia: The resistance an object has to change in its state of motion

Question 15

Newton’s second law

Answer 15

If an unbalanced force acts on a body, that body will accelerate.
F = ma

Question 16

Newton’s Third Law

Answer 16

Every action has and equal and opposite reaction