1.1 Motion in our Lives

Uniform motion is a movement...

• at a constant speed in a zig zag.

• at a variable speed in a straight line.

• at a constant speed in a straight line.

• at a variable speed in a zig zag.

A scalar quantity has...

• magnitude but no direction.

• direction but no magnitude.

• no magnitude or direction.

• direction and magnitude.

Is speed a scalar quantity?

• Yes

• No

True or False? The meter (m) is a base unit.

• True

• False

True or False? The meter per second (m/s) is a base unit.

• True

• False

True or False? The kilogram per liter (kg/L) is a derived unit.

• True

• False

When thinking about how quickly you're travelling at a particular moment in time, you are thinking about your:

• instantaneous speed

• average speed

You biked 7.0 km in 2.0 h. Your average speed was _______ km/h.