Measurement and Force

Measurement is the comparison of

(Choose the best option)

• known physical quantity with unknown physical quantity

• Unknown physical quantity with known quantity

• Unknown physical quantity with known quantity of same kind

• Unknown physical quantity with known standard quantity of same kind

In MKS system

• Length is measured in centimeter, mass in kilogram and time in second

• length is measured in meter , mass in kilogram, and time in second

• length is measured in foot, mass in pound and time in second

• length is measured in centimeter, mass in gram and time in second

1 Kilogram (Kg) is equal to

• 1000gram

• 100gram

• 10gram

• 1gram

1 gram is equal to

• 1000miligram (mg)

• 100miligram (mg)

• 10miligram (mg)

• 1miligram (mg)

1 Solar day is equal to

• 86000 seconds

• 86400 seconds

• 86800 seconds

• 86800 seconds

1 Newton is equal to

• 1Kgm/s²

• 1Kg/s

• 1Kg²/s

• 1Kg²/s²

The formula of velocity is

• distance / time

• displacement / time

• length / time

• time / displacement

The formula to calculate relative velocity V_AB when two bodies are moving in opposite direction is

• V_A +V_B

• V_A-V_B

The negative of acceleration is called

• relative velocity

• acceleration

• retardation

• speed

The time rate of change of ........................ is called acceleration

• velocity

• speed

• acceleration

• displacement