Dynamics

Question 1

defined as a push or pull

Answer 1

force

Question 2

force Has a unit of

Answer 2

newton

Question 3

newton is equal to

Answer 3

kg.m/s2

Question 4

 Any influence that can change an object’s motion

Answer 4

force

Question 5

two categories of force

Answer 5

contact force
non contact force

Question 6

– force directly applied to a body.

Answer 6

contact force

Question 7

examples of contact force

Answer 7

 Normal force
 Frictional force
 Tension force
 Weight

Question 8

acts through an empty space

Answer 8

non contact force

Question 9

example of non contact force

Answer 9

 Electric field
 Magnetism
 gravitational

Question 10

• Types of force

Answer 10

 Tensile force (t)
 Normal force (Fn
 Frictional force (Ff or f)
 Weight (W)
compressive

Question 11

is the force acting along the string when stretched or compressed

Answer 11

tensile force

Question 12

supporting force perpendicular to the surface area when two objects are in contact with each other

Answer 12

normal force

Question 13

tangential force acting on an object that opposes the sliding of the object on an adjacent surface in which it is contact

Answer 13

frictional force

Question 14

static frictional force

Answer 14

fs

Question 15

kinetic frictional force

Answer 15

fx

Question 16

sliding frictional force

Answer 16

Fsl

Question 17

it is the force with which a body is pulled towards the center of the earth due to gravity.

Answer 17

weight

Question 18

 Has a magnitude of mass of the object and gravitational acceleration

Answer 18

weight

Question 19

– ratio of the frictional force resisting the motion of two forces in contact to the normal force pressing the two surfaces together

Answer 19

coefficient of frictional force

Question 20

coefficient of frictional force formula

Answer 20

μ=F/N

Question 21

acts towards a body (ex. String, cables, wires, ropes, etc)

Answer 21

compressive

Question 22

are diagrams used to show the relative magnitude and direction of all forces acting upon an object in a given situation

Answer 22

free body diagrams

Question 23

• Three laws of motion

Answer 23

 Law of inertia
 Law of acceleration
 Law on interaction

Question 24

states that every object continues to remain at rest or in uniform motion in a straight line unless a force acts on it to change its state

Answer 24

law of inertia

Question 25

law of inertia states

Answer 25

states that every object continues to remain at rest or in uniform motion in a straight line unless a force acts on it to change its state

Question 26

defined as the tendency of an object to persist in the state of rest or uniform motion in a straight line

Answer 26

inertia

Question 27

* A 50N force is applied to two objects weighing 10kg and 100kg, respectively what is the acceleration for both force

Answer 27

a= 5 m/s^2 a= 0.5m/s^2

Question 28

* Inertia is proportional to

Answer 28

mass

Question 29

law of inertia formulas

Answer 29

Law of inertia ∑▒〖F=0 〗 ∑▒〖Fy=0 〗 ∑▒〖Fx=0 〗

Question 30

newton's second law of motion

Answer 30

states the acceleration of an object is dependent on the net force acting on the object and the mass of the object.

Question 31

Fnet formula

Answer 31

ma

Question 32

states that the acceleration of an objects is directly proportional to the net force acting on it, and is inversely proportional to the object’s mass

Answer 32

law of acceleration

Question 33

law of acceleration states

Answer 33

states that the acceleration of an objects is directly proportional to the net force acting on it, and is inversely proportional to the object’s mass