Free Printable Week 1 : 1.1 Dimensions of physical quantities

Worksheets

Week 1 : 1.1 Dimensions of physical quantities

Total questions: 24

Worksheet time: 27mins

Name

Class

Date

Which one of these options is NOT a derived quantity?

Area

Volume

Density

Temperature

Which of the following is not a base unit?

meter

newton

kilogram

second

What is the DIMENSION of length?

1 nm (nano-meter) = .... m

1 x 10^-12

1 x 10⁹

1 x 10^-9

1 x 10¹²

What is the DIMENSION of acceleration?

L³

L/T

L/T²

Which one is not a dimension?

Length

Mass

Time

Kelvin

Which one is a unit?

Feet

Second

Square meter

All of the mentioned

What is the SI unit of speed?

m/s

cm/s

km/hour

kg/m

The below given distance units are arranged in an order of

nm, mm, dm, m, Km

Smallest to largest

Largest to smallest

Not arranged in any correct order

None of the mentioned

10.

Find out the dimensionless quantity

Proton mass

Number $\pi$

Atmospheric pressure

Density of water

11.

Which of the following is a derived unit?

metre

second

kilogram

joule

12.

The unit of length SI (metric) system is

13.

What is the DIMENSION of length?

[l]

14.

What is the DIMENSION of acceleration?

$L^3$

$\left[\frac{L}{T}\right]$

$LT^{-2}$

$\left[LT^{-2}\right]$

15.

Find the direction and magnitude of the resultant vector for the drawing of two forces.

Direction 90°
Magnitude 139.0N

Direction 52.3°
Magnitude 195N

Direction 52.3°
Magnitude 139.0N

Direction 37.7°
Magnitude 139.0N

16.

A car moved 60 km East and 90 km West. What is the displacement and the direction?

30 km, West

60 km. East

90 km

150 km

17.

solve for the value of y

18.

Find the value of x. Round to the nearest tenth.

12.2

14.6

15.4

19.

If vector A has an x component of 12 units and a y component of 7 units, what is the magnitude of vector A?

19 units

13 units

14 units

193 units

20.

With this one, try drawing the diagram yourself to help you if you need it:

A football is kicked at 12 m s^-1 at an angle of 35° to the horizontal. The horizontal component of its velocity, in m s^-1, is given by

$12\cos\ 35\degree$

$12\sin35\degree$

$\frac{12}{\cos35\degree}$

$\frac{12}{\sin35\degree}$

21.

A box of weight 150 N is placed on an inclined plane. The component of the box’s weight acting along the plane is given by W'. What would be the value of W', in Newtons?

$\frac{150}{\cos15\degree}$

$150\times\cos15\degree$

$\frac{150}{\sin15\degree}$

$150\times\sin15\degree$

22.

A car drives 20 km due east and then 20 km due south.

Select the row from the table that correctly expresses the magnitudes of the total distance travelled and the total displacement of the car at the end of this journey.

23.

Two forces F₁ and F₂ act on an object as in the diagram above.

If F₁ and F₂ are drawn to scale, the resultant force can be found by measuring the length of the resultant line F_R.

Which of the following diagrams shows the correct position of the line F_R?

24.

FINAL QUESTION: TAKE YOUR TIME. REMEMBER A DRAWING WILL HELP!

A Force F is resolved into two components, F_h and F_v at right angles to each other as in the diagram above. Which statement below is NOT true?

Decreasing the angle θ will increase the size of F_h

Increasing the angle θ will increase the size of Fv

F_h and F_v have sizes that when added together give a total equal to the size of F.

F_h and F_v have sizes that when added together give a total greater than the size of F.

100 %

Week 1 : 1.1 Dimensions of physical quantities

Total questions: 24

Worksheet time: 27mins

Similar Resources on Wayground