Motion

Which of the following is a measure of speed?

• km

• min

• m/s

• cm

Which is an ideal reference point?

• A colored object

• A nonmoving landmark

• A person running

• A cloud in the sky

Riza is walking along a sidewalk. Which of the following sentences is true?

• Riza is moving with respect to the building at the corner.

• Riza is moving with respect to another person who is walking beside her.

• Riza is not moving with respect to the sidewalk.

• Riza is not moving with respect to the sun.

What is elapsed time?

• It is the time from sun up to sun down.

• It is the time between two specific events.

• It is the final recorded time.

• It is the initial recorded time.

A biker covers a distance of 150 km in five hours. what is the biker’s speed?

• 15 km/hr

• 30 km/hr

• 45 km/hr

• 60 km/hr