Brainscape's Knowledge GenomeTM

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


See full index

Physics > Forces > Flashcards

Forces Flashcards

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

What is scalor quantity?

A

Quantities with only magnitude

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

What is a vector ?

A

Quantity with magnitude and direction

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

Examples of scalor quantities ?

A

Speed
Voltage
Distance

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

Examples of vector quantities?

A
  • velocity
  • displacement
  • acceleration
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is a force ?

A

Push or pull

Nothing can move without force

Measured in Newton’s (N)

Force can change SHAPE,DIRECTION AND SPEED

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

What is contact force ?

A

When two force ARE touching each other

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

what is non - contact force ?

A

When two forces are NOT touching each other

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

Example of contact force :

A

Normal force

Air resistance

Friction

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

Examples on NON-contact :

A

Gravitational

Electrostatic

Upthrust

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

WEIGHT,MASS AND GRAVITATION FEILD STRENGTH:

A

weight = (N) Newton’s

Mass= (Kg)

Gravitational field strength = (N/kg)

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

What apparatus is used to determine an objects weight ?

A

Newtonmeter

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

What is mass ?

A

Amount of matter in an object

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is weight ?

A

FORCE acting on an object due to GRAVITY

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the gravitational field strength on earth ?

A

9.8 (N/KG)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Comparison of weight and mass :

A

Weight is the force on an object whereas mass is the matter in an object

Weight is measured in Newton’s but mass is measured in kg

Weight changes depending which planet you on but mass remains the same wherever you are

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is HOOKES LAW :

A

extension applied is DIRECTLY PROPORTIONAL to the force applied, to LIMIT of PROPORTIONALITY

17
Q

Equation for force :

A

Force applied = extension x spring constant

18
Q

Units for equation for force

A

Force applied = newtons

Extension = cm/m

Spring constant = n/m

19
Q

What does directly proportional mean ?

A

If force is INCREASED BY A FACTOR then EXTENSION also INCREASE by the same factor :

E.g doubling force (double extension)

20
Q

What does it mean by spring constant ?

A

Tell us the STIFFNESS of a SPRING do they the HIGH K VALUE means STIFFER spring so LESS EXTENSION

Physics (8 decks)

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