Speed
Vocabulary
Motion
Calculating Speed
Review Questions
100
How do you measure the speed of an object?
Distance and time.
100
A push or a pull.
Force.
100
Both of Mrs. Rogers' classes are investigating force and the effects of the motion of a toy car. How can both of her classes make sure their conclusions are accurate?
Both classes should share and compare their results.
100
Chase ran 20 meters in 5 seconds. What is Chase's speed?
4 meters per second.
100
What tool can you use to measure the time an object travels?
A stopwatch.
200
Elena and Annika walk to school everyday. It takes Elena 10 minutes to get to school and it takes Annika 7 minutes to walk on the same path. Why does it take them different lengths of time?
They are walking at different speeds.
200
A meterstick and a stopwatch can be used to measure....
Speed
200
A change in where an object is...
Motion
200
A toy car went 15 meters in 3 seconds. Calculate the toy cars speed.
5 meters per second.
200
What does a speedometer on a car show?
The speed the car is traveling in kilometers per hour and miles per hour.
300
Mrs. Rogers' class used stopwatches to measure the time it took a rubber ball to go down a 1 meter ramp. What is the reason for the difference in results?
The time it took to start and stop the stopwatch was different for each student.
300
A path a moving object takes.
Direction.
300
What can change a moving objects direction, such as planes being turned.
Force.
300
A cheetah ran 500 meters in 10 seconds. What is the cheetah's speed?
50 meters per second.
300
What does mph and kph stand for?
Miles per hour and kilometers per hour.
400
Ashton rode his bike in a straight path to his baseball game. He peddled as hard as he could for the last 50 meters. What changed? Hint: speed, direction, force, or position
Speed
400
The amount of space between two places.
Distance.
400
How can you tell that an object is in motion?
The object changes its position.
400
Can a greyhound travel at a faster speed than an elephant in 20 seconds?
Yes, a greyhound is faster than an elephant.
400
Explain whether a person on a train goes farther than a person on a plane in the same amount of time.
A person on an airplane will go farther than a person on a train. Airplanes travel at faster speeds than trains do. They will go a greater distance in the same amount of time.
500
Two motorcycles traveled the same road, from the same place, in the same direction. If the two motorcycles travel at different speeds for 30 minutes, they will...... Hint: arrive at the same place OR travel different distances
travel different distances
500
When a bird flies away from his nest he changes his...
Position.
500
How does speed describe the motion of an object?
Speed describes how fast an object moves.
500
Leyan walked 150 meters in 10 seconds. What is her speed?
15 meters per second
500
How you can calculate an objects speed?
Distance divided by Time= Speed
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