PHYSICS UNDERTSANDING

Which of the following physical quantities is not a derived quantity?

• Frequency
• Mass
• Velocity
• Pressure

A wireless device operates at a frequency of 232.2 MHz.
How much is this frequency, in Hz?

•  2.322 × 10⁷
• 2.322 × 10⁸
• 2.322 × 10⁹
• 2.322 × 10¹⁰

Which of the following is a basic unit?
 

• Joule
• Coulomb
• Gram
• Meter

Which of the following physical quantities is a base quantity?

• Speed
• Power
• Length
• Volume

Which of the following physical quantities is a derived quantity?

• Electric current
• Momentum
• Temperature
• Mass

Tags

NGSS.HS-PS2-2

Which of the following quantity is base quantity ?

• voltage
• electric current
• electric energy
• electric power

Which of the following pairs of physical quantity and SI unit is correct ?

• Mass - SI unit : Gram
• Time - SI unit : Hour
• Electric current - SI unit : Volt
• Temperature - SI unit : Kelvin

What is derived quantities ?

• a tendency to do nothing or to remain unchanged.
• combination of two or more base quantities
• the quantity of motion of a moving body, measured as a product of its mass and velocity.

Tags

NGSS.HS-PS2-2

What is the SI unit of weight?

• kilograms

• grams

• newtons

• kg

What is the unit of DENSITY

• m/s

• m/s²

• kg/m³

• Newton