Metric conversions and vectors vs scalar

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

Which statement describes a vector?

• It has magnitude but no direction
• It has direction but no magnitude
• It has both direction and magnitude
• It has constant magnitude but no
   direction

A quantity that has both magnitude and direction is called a scalar quantity.

• True
• False

490,000 g =____ kg

• 490
• 49
• 4,900
• 0.49

Convert 300 cm to m:

• 3 m
• 30 m
• 0.3 m
• 0.03 m

285 kg = ____ g

• 285,000
• 285
• 2,850
• 28,500

In a diagram, the length of a vector arrow represents the

• type of vector.

• direction of the vector.

• magnitude of the vector.

• cause of the vector.

A passenger jet has a speed of 900 km/h.
What is its speed in m/s?
(1 km = 1000 m)

• 250 m/s
• 324 m/s
• 1,500 m/s
• 2,500 m/s