Motion and speed

What tools do you need to calculate speed

• Stop watch only

• Measuring tape and stop watch

• Measuring tape only

Carlos rides his bike from his house to school. It takes him 3 minutes to get there. If Carlos wants to calculate his speed, what other piece of information does Carlos need in order to figure out his speed?

• The time of day he is riding his bike.

• The distance between his house and school.

• The type of bike he is riding.

• The direction he needs to travel.

Two cars start traveling on the same road from the same place in the same direction. If two cars travel at different speeds for 2 hours and then stop, they will...

• end up on two different roads.

• move together most of the trip.

• travel different distances.

• arrive at the same place.

What do you need to measure in order to figure out the speed of an object?

• Time only

• Distance only

• Distance and time

Jocelin rode her bike in a straight path across a field. She pedaled as hard as she could for the last 50 meters. Which of these stayed the same during her bike ride?

• the force on the pedals of the bike

• the position of the bike on the field

• the speed of the bike

• the direction of the bike

Jayna and her cousin walk to school every day. It takes Jayna 15 minutes to walk to school. It takes her cousin 13 minutes to walk to school. Why does it take them different lengths of time?

• Jayna's cousin measured the distance in meters instead of feet

• They are walking at different speeds.

• They are walking at different distances.

• Jayna measured her time using a stop watch instead of a clock.

You are flying on a plane from Florida to Mexico. Which of these would MOST LIKELY change constantly over the hour?

• the direction of the plane

• the position of the plane

• the position and the direction of the plane

• the speed and direction of the plane

Four students were in a race. Here are their names and how long it took for each of them to run the race.

Laura: 5 minutes 30 seconds

Zuleyma: 5 minutes 10 seconds

Vicente: 4 minutes 30 seconds

Aaron: 3 minutes and 4 seconds

Who won the race?

• Aaron

• Vicente

• Zuleyma

• Laura