23 STEM Phys U1L2 Scalars and Vectors Problem Set

Pick the scalar quantity.

• 30 km

• 30 km, West

• 56 N, upwards

• 25 km/hr, forward

Pick the scalar quantities.

• 82 mL

• 30 km, West

• 56 N, upwards

• 25 km/hr

Match the following vocabulary terms to their definitions

• magnitude and direction (25 mph, North)

• Vector

• number + unit (ex. 25 meters)

• Scalar

• quantity with magnitude (ex. 45 seconds)

• Magnitude

Jorge says that 30 meters is a vector quantity but Regina says that its a scalar quantity.
Who's correct?

• Jorge

• Regina

• Both are correct

• Both are incorrect

What is a magnitude?

• A numeric value.
• A direction.

A scalar is a magnitude _____.

• With direction.
• Without direction.

Wind blowing at 20 mph.Vector or scalar?

• Scalar
• Vector

30 m/sec, East. Scalar or Vector

• Scalar
• Vector
• Neither

A deer running 15 meters per second due west.Vector or scalar?

• Scalar
• Vector

An example of scalar magnitude:

• velocity

• mass

• acceleration

• force