basic terms

Question 1

Net force

Answer 1

The combination of forces acting on an object, which change its state of motion.

Question 2

Net force = 0

Answer 2

an object is being acted on with equal and opposing forces, which essentially cancel each other out. The object will stay in equilibrium.

Question 3

support force / normal force

Answer 3

a force that balances the weight of an object at rest, and produces a net force of zero

Question 4

weight

Answer 4

a measure of gravitational force acting on an object ( how strong matter is attracted by gravity) and is dependent on the object’s location

Question 5

mass

Answer 5

The quantity of matter in an object. More specifically itm is a measure of the inertia that an object exhibits in response to any effort made to start it, spot it, or otherwise change its state of motion. It depends only on the number of atoms that compose it. - is a measure of inertia

Question 6

inertia

Answer 6

a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force (ex. friction) (resistance to change in motion)

Question 7

Newton’s first law / law of inertia

Answer 7

object in a state of rest stay at rest, or objects in motion tend to stay in motion in a straight line at a constant speed, unless it is compelled to change that state by an unbalanced force exerted upon it.

Question 8

Newton

Answer 8

the unit of force (N)

Question 9

force

Answer 9

a push or pull

Question 10

friction

Answer 10

a force that acts between materials that touch as they move past each other. It is cause by irregularities that obstruct motion.

Question 11

Newton’s 2nd Law of motion

Answer 11

the acceleration of an object depends on the force applied to that object and the mass of the object ( how force changes velocity)

Question 12

equation for weight

Answer 12

w = m x acceleration due to gravity

Question 13

equation for mass

Answer 13

force / acceleration

Question 14

equation for acceleration

Answer 14

Net force / mass

Question 15

kilogram

Answer 15

unit of mass (kg)

Question 16

meters per second

Answer 16

units for acceleration (m/s/s)

Question 17

equation for force

Answer 17

f = acceleration x mass

Question 18

friction

Answer 18

a force that acts between two objects that are in contact with each other and in a direction opposite to motion

Question 19

Static friction

Answer 19

exists when not enough force has been applied to start moving an object

Question 20

sliding friction

Answer 20

exists when enough force has been applied to start moving an object

Question 21

if applied force is EQUAL/BALANCED to sliding friction…

Answer 21

the object moves at a constant velocity

Question 22

if applied force is greater than sliding friction…

Answer 22

the objects velocity changes

Question 23

equation for gravity

Answer 23

gravity = weight/mass

Question 24

pressure equation

Answer 24

pressure = force/ area of application

Question 25

newton’s third law

Answer 25

for every action (force) in nature there is an equal and opposite reaction

Question 26

the action force is always equal to the reaction force do not cancel because

Answer 26

the forces act between TWO OBJECTS and do not act on a single object