Force and Motion

Which information is needed to determine the speed of an object?

• the weight of the object and the pull of gravity on the object and the amount of tie it travels

• the pull of gravity on the object and the amount of time it travels

• the inertia of the object and the amount of force that is pushing it

• the distance the object travels and the time it takes to travel that distance

If you travel 10 miles in 5 minutes, what is your speed?

• 10 mi/min

• 2 mi/min

• 15 mi/min

• 50 mi/min

What unit would I use when measuring time?

• seconds

• meters

• meters per second

A helicopter travels 150 miles in the first hour. It travels 150 miles the second hour. What can be determined about its speed?

• it traveled faster the first hour

• not enough information

• it traveled at a constant speed

• it traveled faster the second hour

What unit would I use when measuring distance

• seconds

• meters

• meters per second

What is speed?

• how far you go

• how fast you accelerate

• how much distance is covered over a period of time

• the change in the location of an object

Suzy's trip to the store takes 30 minutes. She stays inside the store for 10 minutes before returning home, making her total trip time one hour and 20 minutes. Which statement best describes Suzy's motion?

• She slows down on the return trip.

• her speed remains constant.

• She speeds up on the return trip.

• Her speed gains momentum.

What unit would I use when measuring speed?

• meters per second

• seconds

• meters

At 60 seconds, how far had this object traveled?

• 40 m

• 10 m

• 0 m

• 20 m

Which best explains the results of the race?

• Car 1 traveled the fastest

• Car 1 traveled the farthest distance.

• Car 2 traveled the shortest distance.

• Car 2 traveled the fastest.