Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Physics > Mechanics > Flashcards

Mechanics Flashcards

You may prefer our related Brainscape-certified flashcards:
Physics 101 flashcards AP® Physics flashcards
1
Q

Simple Harmonic Motion

A

it’s acceleration is directly propotrional to its distance from a fixed point on its path.

its acceleration is always directed towards that path

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Angular Velocity

A

the rate of change of angle per unit time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Archimedes Principle

A

states that when an object is partially or completely immersed in a fluid, it experiences an upthrust equal in magnitude to the weight of the flood displaced.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Boyle’s Law

A

states that at a constant temperature the volume of a fixed mass of gas is inversely proportional to its pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Centripetal Acceleration

A

is acceleration a body has towards the centre of the circular path its moving on

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Couple

A

two parallel forces with the same magnitude acting in opposite directions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Centripetal Force

A

the force acting towards the centre for a body moving in a circular path

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Density

A

Mass/volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Distance

A

measure of the seperation between two points

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Displacement

A

The Seperation between two point in a given direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

energy

A

the ability to do work

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Acceleration

A

the rate of change of velocity with respect to time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Force

A

That which changes or tends to change the velocity of an object

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Formula for Gravitational Potential energy

A

Ep=mgh

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Formula for Kinetic Energy

A

Ek= 1/2mv2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Friction

A

a force that opposes motion between two surfaces in contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Hooke’s Law

A

states that the extension of an elastic body is directly proportional to the force producing the extension

13
Q

Kinetic Energy

A

The energy a body has due to its motion

15
Q

Law of Floatation

A

states that the weight of a floating body is equal to the weight of the fluid it displaces

16
Q

Lever

A

Any rigidd body that is free to rotate about a fixed point calledf a fulcrum

17
Q

Moment

A

Force x perpendicular distance

18
Q

Momentum

A

the product of mass and velocity of a body

19
Q

Newton’s first law of motion

A

states that every object will remain in a state of rest or travelling with a constant velocity unless an unbalanced external force acts on it

21
Q

Newton’s third law of motion

A

Every action has an equal and opposite reaction

23
Q

Newton’s Law of Universal Gravitation

A

states that the force between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance between them

24
Q

Newtons Second Law of Motion

A

The rate of change of momentum is directly proportional to the applied force and takes place in the same direction in which the force acts

25
Q

Period of an orbit

A

the time taken for a satellite to go once around the central body

25
Q

Potential Energy

A

the stored energy a body has due to its position or state

26
Q

Power

A

the rate at which work is done or energy is converted

28
Q

Pressure

A

Force/ Area unless its a liquid it = pgh (density)(gravity)(depth)

30
Q

principle of conservation of energy

A

energy cannot be created or destroyed but can only be converted from one form to another

32
Q

Principle of conservation of momentum

A

in any close system of colliding bodies, the total momentum remains constant.

33
Q

Proof: F=MA is a special case of Newton’s 2nd Law

A
34
Q

Renewable source of Energy

A

One that will nopt be exhausted e.g wind,solar and tidal.

35
Q

Scalar

A

only has magnitude

36
Q

Speed

A

distance/time

37
Q

The Centre of Gravity

A

of an object is the point through which the weight of the object appears to act

38
Q

The efficency of a machine

A

the energy output as a percentage of energy input

39
Q

Torque (moment of a couple)

A

The magnitude of one force multiplied by the perpendicular distance between them

40
Q

Vector

A

has magnitude and direction

41
Q

Weight

A

the force with which a mass is attracted to a planet

42
Q

Work

A

is done when a force causes a body top be displaced.

(W=Fd)

Physics (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions