Brainscape's Knowledge GenomeTM

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


See full index

Physics F3 > Physics Intro. > Flashcards

Physics Intro. Flashcards

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

What is Physics?

A

The branch of science concerned with the nature and properties of matter.

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

What is a physical quantity?

A

A physical quantity is a quality possessed by a system in physics that can be measured directly or indirectly

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

What does SI units stand for?

A

International System of Units.

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

What is the SI units built around?

A

7 base units,
derived units,
and a set of prefixes that act as decimal-based multipliers.

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

What are the International System of Units?

A

These are the physical quantities that must be measured directly.

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

What are fundamental properties?

A

A fundamental property cannot be defined in simpler terms other than describing how it is measured.

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

What are the 7 base units?

A

meter, kilogram, second, ampere, kelvin, mole, candala.

m, kg, s, a, K, mol, candala.

length, mass, time, electric current, thermodynamic temperature, amount of substance, luminous intensity.

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

What are derived units?

A

Derived units are formed by the powers, products or quotients of the base units and are unlimited in number.

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

SI units are part of the…

A

metric system

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

Symbols are used to denote…

A

various factors of 10 to the powers.

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

What is order of magnitude?

A

The scale of the value expressed in the metric system. Each power of 10 in the metric system represents a different order of magnitude.

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

What does the prefix mega mean?

A

mega, M, 10^6

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

What does the prefix kilo mean?

A

kilo, k, 10^3

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

What does the prefix deci mean?

A

deci, d, 10^-1

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

What does the prefix centi mean?

A

centi, c, 10^-2

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

What does the prefix milli mean?

A

milli, m, 10^-3

17
Q

What does the prefix micro mean?

A

micro, p, 10^-6

18
Q

What does the prefix of nano mean?

A

nano, n, 10^-9

19
Q

How do you remove a prefix?

A

You multiply the numerical value by the value of the prefix.

20
Q

How do you add a prefix?

A

Divide the numerical value by the value of the prefix.

21
Q

How can physical quantities be divided?

A

They can be divided into Vectors and Scalars.

22
Q

What’s a Scalar?

A

Scalars can be fully described only using the order of magnitude (size).

23
Q

What’s a Vector?

A

Vectors have a magnitude and a direction. To fully describe a vector, you need to mention both magnitude and direction.

24
Q

Examples of Scalars:

A

Mass, Time, Volume, Temperature, Pitch, Distance.

25
Q

Examples of Vectors:

A

Displacement, Velocity, Force.

26
Q

How do you know if an object is moving?

A

If the position of an object is not changing with time, then the object is not moving.

27
Q

What is a displacement path?

A

The shortest path from one point to another.

28
Q

Why is displacement a vector quantity?

A

Because one must go in a particular direction all the time.

29
Q

What’s the difference between Distance and Displacement?

A

Distance is known as the length of a path. It is a scalar quantity. It is measured using metres (m).

Displacement is the shortest possible distance between two points. It is a vector quantity because it has a direction. It is measured in m.

30
Q

What’s the difference between speed and velocity?

A

Speed is defined as the distance travelled per second. It is a scalar quantity.

Velocity is defined as the displacement done per second. It is a vector quantity.

31
Q

What is the equation for speed?

A

Average speed = distance (m)/ time (s)

32
Q

What’s the equation for velocity?

A

Average Velocity = Displacement (m)/time (s)

33
Q

What is acceleration?

A

Acceleration is the change in velocity per second.

It is a vector quantity.

The unit is metres per square second.

34
Q

What is deceleration?

A

When velocity is decreasing, it is known as deceleration.

35
Q

The equation for acceleration:

A

acceleration=final velocity-inital velocity/ time

a=v-u/t

36
Q

What’s another calculation for average velocity?

A

Average Velocity=Initial Velocity+Final Velocity/2

Average Velocity=Displacement/Time

37
Q

What’s the equation to find the gradient of a line?

A

gradient = y1-y2 / x1-x2

Physics F3 (1 decks)

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