Brainscape's Knowledge GenomeTM

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


See full index

physics > physical quantities > Flashcards

physical quantities Flashcards

1
Q

What is a physical quantity?

A

A physical quantity is a property of a physical system that can be measured and expressed numerically.

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

True or False: All physical quantities have both a magnitude and a unit.

A

True

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

Fill in the blank: The unit of force in the SI system is _____ .

A

Newton

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

What are the two main types of physical quantities?

A

Scalar quantities and vector quantities.

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

Multiple choice: Which of the following is a scalar quantity? A) Velocity B) Mass C) Force

A

B) Mass

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

Define a scalar quantity.

A

A scalar quantity has only magnitude and no direction.

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

Define a vector quantity.

A

A vector quantity has both magnitude and direction.

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

What is the SI unit for energy?

A

Joule

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

True or False: Temperature is a scalar quantity.

A

True

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

Fill in the blank: The unit of pressure is _____ .

A

Pascal

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

What is the difference between mass and weight?

A

Mass is a measure of the amount of matter, while weight is the force exerted by gravity on that mass.

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

Multiple choice: Which of the following is a vector quantity? A) Speed B) Distance C) Acceleration

A

C) Acceleration

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

What is the unit of electric current?

A

Ampere

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

True or False: Speed is a vector quantity.

A

False

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

Fill in the blank: The unit of frequency is _____ .

A

Hertz

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

What is a derived quantity?

A

A derived quantity is a physical quantity that is derived from base quantities.

17
Q

Name the base quantity that measures length.

A

Meter

18
Q

Multiple choice: Which of the following is not a base quantity? A) Length B) Time C) Speed

A

C) Speed

19
Q

What is the SI unit for luminous intensity?

A

Candela

20
Q

True or False: Area is a scalar quantity.

A

True

21
Q

Fill in the blank: The unit of power is _____ .

A

Watt

22
Q

What is the base unit for time in the SI system?

A

Second

23
Q

Multiple choice: Which of the following is a base quantity? A) Temperature B) Force C) Energy

A

A) Temperature

24
Q

What is the SI unit for amount of substance?

A

Mole

25
Q

True or False: Volume is a vector quantity.

A

False

26
Q

Fill in the blank: The unit of electric charge is _____ .

A

Coulomb

27
Q

What is the relationship between mass and weight on Earth?

A

Weight is equal to mass multiplied by the acceleration due to gravity (Weight = mass × g).

physics (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions