PHYSICS 11

What is the base unit for length in the SI system?

• The base unit for length in the SI system is the liter (L).

• The base unit for length in the SI system is the meter (m).

• The base unit for length in the SI system is the second (s).

• The base unit for length in the SI system is the kilogram (kg).

What is the base unit for mass in the SI system?

• liter

• kilogram

• pound

• meter

What is the base unit for time in the SI system?

• minute

• hour

• second

• day

How many significant figures are in the number 0.00340?

• 3

• 2

• 1

• 5

What is the base unit for temperature in the SI system?

• The base unit for temperature in the SI system is Kelvin (K).

• The base unit for temperature in the SI system is Celsius (°C).

• The base unit for temperature in the SI system is Pound (lb).

• The base unit for temperature in the SI system is Fahrenheit (°F).

is the dimensional formula for

• Velocity

• Acceleration

• Force

• Work

Tags

NGSS.HS-PS2-1

The error in the measurement of the sides of a rectangle is 1%. The error in the measurement of its area is

• 1%

• 1/2 %

• 2 %

• None of the above

Light year is a unit of

• Time

• Mass

• Distance

• Luminosity

The magnitude of scalar product of two unit vectors perpendicular to each other is

• 0

• 1

• -1

• 2

For two vectors to be equal, they should have the

• same magnitude

• same direction

• same magnitude and direction

• same magnitude but opposite direction