Understanding Physical Measurements

What is the SI unit of length?

• ampere

• second

• gram

• meter

What is the difference between scalar and vector quantities?

• Scalars have both magnitude and direction, while vectors have only magnitude.

• Vectors are always larger than scalars in value.

• Scalars can be represented as arrows, while vectors cannot.

• The difference is that scalars have only magnitude, while vectors have both magnitude and direction.

What is the standard unit of time in the SI system?

• minute

• day

• hour

• second

How long is the length of an object?

• 7.2 cm

• 6.7 cm

• 6.2 cm

• 5.7 cm

Which one is a derived quantity?

• Area

• Mass

• Temperature

• Electric current

Which one of these options is not a derived quantity?

• Area

• Length

• Speed

• Volume

What is the volume of this liquid?

•   30 cm³

• 25 cm³

• 24 cm³

• 20 cm³

Which of these is a scalar quantity?

• Force

• Speed

• Velocity

• Acceleration

Which of these is not a vector quantity?

• Displacement

  
  

• Acceleration

• Velocity

• Time

What is the resultant of two parallel forces which both forces act in the same direction?

• 15 N

• 14 N

• 13 N

• 11 N