Science 5 Third Quarter Part 1

Speed is defined as the rate of motion and is expressed as the distance traveled in a given amount of time. Which of the following illustrates the correct unit for speed?

I. Meter                    II. Second                III. Meter per second            IV. Kilometer per hour

• I only

• II only

• I and II

• III and IV

A bicycle travels at an average speed of 2 meters per second. This simply means that it can travel _____________.

• 1 meter in 1 second

• 4 meters in 2 seconds

• 2 kilometers in 1 hour

• 2 seconds in 1 meter

A dove can fly 60 meters in 10 seconds. What is the speed of the dove?

• 0.6 m/s

• 6 m/s

• 60 m/s

• 600 m/s

How far will an earthworm crawl in 10 minutes if it moves at a rate of 2 centimeters per minute?

• 5 centimeters

• 8 centimeters

• 12 centimeters

• 20 centimeters

You are racing a cart down the hallway if you move 10 meters in 5 seconds. What is your speed?

• 2 miles per hour

• 2 meters per second

• 5 meters per second

• 50 meters per second

A cyclist travels 40 kilometers in 2 hours, what is the average speed?

• 10 km/hr

• 20 km/hr

• 60 km/hr

• 80 km/hr

A biker travels 150 kilometers in 5 hours. What is the average speed of the biker?

• 15 km/hr

• 30 km/hr

• 45 km/hr

• 60 km/hr

What is the basic unit for measuring distance?

• hour

• meter

• millimeter

• second

Why is it important to use the appropriate instruments in measuring?

I. Measuring with the appropriate instrument can save time and effort.

II. These measuring instruments give exact and precise measurements.

          III. The use of nonstandard measuring instruments gives inaccurate measurements.

• I and II

• I and III        

• II and III

•  I, II and III

Which of the following materials is appropriate for cooking food?

• metal spoon

• wooden pot

• plastic ladle

• aluminum casserole