25-q1-20-2

Front

What is the formula for the area of a trapezium?

Back

Area = 1/2 * (Base1 + Base2) * Height

Front

If the area of a trapezium is 150 cm² and the lengths of the parallel sides are 11 cm and 14 cm, how do you calculate the height?

Back

Height = (Area * 2) / (Base1 + Base2) = (150 * 2) / (11 + 14) = 10 cm

Front

Convert 5 km² to Dam².

Back

5 km² = 500 m² (1 km² = 1000 Dam²)

Front

What does the prefix 'micro' mean in scientific terms?

Back

Micro means 1 x 10^-6.

Front

What is the formula to find the weight of an object?

Back

Weight = Mass x Acceleration due to Gravity (DTG).

Front

What is the unit of area in the metric system?

Back

Square meters (m²).

Front

How do you convert square kilometers to square meters?

Back

Multiply by 1,000,000 (1 km² = 1,000,000 m²).

Front

What is the significance of the symbol that indicates the presence of substances that can liberate electrons?

Back

It indicates the presence of ionizing radiation.

Front

What is the relationship between mass, weight, and gravity?

Back

Weight is the force exerted by gravity on an object, calculated as Weight = Mass x Gravity.

Front

What is the SI unit for mass?

Back

Kilogram (kg).