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Assignment 1

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.

What type of physical quantity is time?

a)

Vector quantity

b)

Scalar quantity

c)

Vector and Scalar quantity

d)

All of the above

2.

Which of the following is the correct unit for time?

a)

S

b)

s2

c)

seconds

d)

hours

3.

Which of the following instruments is used to measure time?

a)

Hours

b)

Calculator

c)

Seconds

d)

Pendulum

4.

What are the units for frequency?

a)

Herz

b)

Hez

c)

Hertz

d)

Htz

5.

Physical quantities that are determined directly through measurements are called_______

a)

Basic physical quantities

b)

Derived Physical quantities

c)

Mechanics physical quantities

d)

Physics physical quantities

6.

Which combination shows derived physical quantities in measurements

a)

Length, density, current

b)

Area, mass, time

c)

Density, volume, temperature

d)

Area, energy, density

7.

The fundamental physical quantities that are used in mechanics are:

a)

Mass, temperature, time

b)

Electric current, mass, time

c)

Mass, length, time

d)

Length, time, amount of substance

8.

A body has a mass of 1600 g and its volume is  0.002 m30.002\ m^3 . Determine its density.

a)

 800 gcm−3800\ gcm^{-3}  

b)

 800 kgcm−3800\ kgcm^{-3}  

c)

 0.8 kgm−30.8\ kgm^{-3}  

d)

 800 kgm−3800\ kgm^{-3}  

9.

The shadow of a metre rule used to estimate the height of a tree is 75cm long and that of the tree is 840 cm long.

What is the estimated height of the tree in metres?

a)

11.2 m

b)

1120 m

c)

1.120 m

d)

112 m

10.

When an object of mass 85 g is fully immersed in a measuring cylinder, it displaces a volume of 17 cm 3. What is the density of the object in SI units?

a)

5 g/cm 3

b)

5000 g/cm 3

c)

5000 kg/cm 3

d)

5000 kg/m 3

11.
The SI unit for measuring volume is the __?__.
a)
meter (m)
b)
liter (L)
c)
cubic meter (m3)
d)
gram (g)
12.
The SI unit for measuring mass is the
 __?__.
a)
meter (m)
b)
liter (L)
c)
cubic meter (m3)
d)
kilogram (kg)
13.

SI stands for ___.

a)

Sports Illustrated

b)

Scientific Notation

c)

International System (of measurements)

d)

Instructional System (of measurements)

14.
What prefix is represented by the following symbol:  h
a)
hecto
b)
kilo
c)
deci
d)
deka
15.

The SI unit for mass is _________.

a)

Pounds

b)

Inches

c)

Kilograms

d)

Ounces

16.

SI unit for weight

a)

Pound

b)

Liter

c)

Newton

d)

Second

17.
What does the prefix milli- mean?
a)
1/100
b)
100
c)
1,000
d)
1/1,000
18.

The distance between the Earth and the Sun is around 150,000,000 km. Express this value in scientific notation.

a)

15 x 10 7 km

b)

1.5 x 107 km

c)

15 x 108 km

d)

1.5 x 108 km

19.

What two measurements are necessary for calculating speed?

a)

Mass and time

b)

Mass and distance

c)

Temperature and mass

d)

Distance and time

20.

15.6 m2 = ___________ cm2

a)

1560

b)

156000

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