GENERAL SCIENCE CLASS 8 MCQS

At higher altitude, the temperature and density of the air are:

1. Lower
2. Higher
3. Constant
4. Unchanged

Atmospheric pressure is calculated by the:

1. Height of water column in a pipette
2. Volume of gas in a cylinder
3. Resistance in an electric circuit
4. Height of mercury column in barometer

Atmospheric pressure acts in:

1. Only upwards
2. Only downwards
3. All directions
4. Horizonal only

A quantity that can be measured is called:

1. Physical Quantity
2. Physical Constant
3. Mathematical Quantity
4. Standard Quantity

Which of the following is not the base quantity/quantities:

1. Length
2. Mass
3. Time
4. Acceleration

The quantities that cannot be explained in terms of other quantities are known as:

1. Derived physical quantities
2. Mathematical quantities
3. Fundamental physical quantities
4. None

When a standard is set for a quantity then standard quantity is called:

1. Unit
2. Measurement
3. Quantity
4. Dimension

Which of the following units is a fundamental unit:

1. Meter
2. Joule
3. Second
4. Kelvin

The unit of time in SI system is:

1. Second (s)
2. Minutes (min)
3. Hour (h)
4. Day (d)

The unit of amount of substance in SI system is:

1. Liter (L)
2. Mole (mol)
3. Gram (g)
4. Kilogram (Kg)