Science & measurements 2

Measuring tool

100

Time

Stopwatch

200

Temperature

Thermometer

300

Electric current

Amperemeter

400

Angle

Protractor

500

Pressure using mercury

Mercury barometer/ Toricelle barometer

SI Unit

100

Velocity

m/s

200

Electric potential difference

Volt

300

Power

Watt

400

Frequency

Hertz

500

Gravitational field strength of Earth

N/kg or m/s²

Definition

100

Average speed

Total distance travelled per unit time

200

Power

Energy per unit time or work done per unit time

300

Work done

Force x distance

400

Velocity

Displacement per unit time

500

Formula for kinetic energy

KE = 1/2 x m x v²

Famous scientists

100

Theory of relativity

Albert Einstein

200

3 laws of motion

Isaac Newton

300

Modern vaccination, fermentation & pasteurization

Louis Pasteur

400

Telephone

Alexander Graham Bell

500

Female scientist, radioactivity

Marie Currie

Conversion

100

1 hour in seconds

3600 s

200

1 gigaseconds in second

10⁹ seconds

300

2 km² in m²

2 x 10⁶ m²

400

1 liter in cm³

1000 cm³

500

1 kg/m³ in g/cm³

1 g/cm³