Welcome to your Grade 9 Physics chapter 2
After carefully reading the following 30 questions, choose the correct answer.
1.
What is defined as the comparison of an unknown quantity with a known one (standard unit)?
2.
Which of the following is NOT one of the seven fundamental physical quantities?
3.
What is the SI unit for amount of substance?
4.
What prefix is used to describe a quantity that is 10^-9 of a unit?
5.
Which type of measurement scale is most commonly used in physics?
6.
A physical quantity that has both magnitude and direction is called a:
7.
Which of the following is a derived SI unit?
8.
What is the SI unit for Luminous Intensity?
9.
Which of the following is a safety rule for a physics laboratory?
10.
Quantities that are measured by combining two or more measurable quantities are known as:
11.
The SI standard of time is based on the period of vibration of radiation from which atom?
12.
How many minutes are in 3 hours + 10 minutes + 120 seconds?
13.
Which of these is a scalar quantity?
14.
Which of the following scales allows addition, subtraction, multiplication, and division?
15.
What is the prefix for 10^3?
16.
Physical quantities that can be measured directly are called:
17.
What is the SI unit for temperature?
18.
Which pair of physical quantities has the same unit?
19.
What is the symbol for the fundamental unit of electric current?
20.
Which prefix represents 10^-2?
21.
A nanosecond is equal to:
22.
Which unit is the SI unit for length?
23.
Traditional measuring units are considered:
24.
Which quantity is a vector?
25.
The measured values of physical quantities are described in terms of:
26.
Which of the following is used to simplify the description of very big or very small quantities?
27.
What is the SI unit of mass?
28.
Which of the following is NOT a fundamental unit?
29.
A length that is 2.0 x 10^-3 of a meter is:
30.
Which scale allows objects to be classified into mutually exclusive categories but has no order?
