Nature of Science and Speed
Ethan measured the temperature in the metal, wood, and plastic prototypes in Fahrenheit. Vivan measured the temperature in the glass habitat in Celsius. What could be a reason the glass habitat has very different results than the other three?
Ethan and Vivan used different types of thermometers to collect their data.
Write or draw two examples of energy in motion.
Check answers/drawings.
Possible Examples:
A ball rolling down a ramp.
A person throwing a paper airplane.
If hot food were placed inside a bowl, which material would keep people from burning themselves?
A. A glass bowl
B. A steel bowl
C. A wooden bowl
D. An aluminum bowl
A wooden bowl
Vivan was playing outside and heard a high-pitched cat meow. The cat was stuck in a tree and was trying to get Vivan’s attention. How did the sound of the cat alert Vivan?
The cat’s vocal cords vibrated fast creating a high-pitched meow.
Mikael and Vivan conducted an experiment using solar racers. They wanted to know how changing the angle of the solar panel on the car would affect how the car would travel.
What was the testable question they were collecting data on?
1. What effect does the type of energy have on the distance the car travels?
2. What effect does the angle of the solar panel have on the speed of the car?
3. What effect does the type of solar panel have on the motion of the car?
4. What effect does the angle of the solar panel have on the distance the car travels?
4. What effect does the angle of the solar panel have on the distance the car travels?
Amy was writing a report on motion while watching a baseball game with Klayton. As Amy watched the game, Klayton realized that there were many examples of energy causing motion or creating change in the game. Which of the following examples did Klayton NOT share as examples of energy causing motion or creating change?
1. The bat hitting the ball and the ball changing direction.
2. The 2nd base player throwing the ball to the first base player
3. The ball sitting in the pitcher’s glove before the pitch.
4. The batter running to first base.
3. The ball sitting in the pitcher’s glove before the pitch.
Which cup conducts the heat from a hot drink the fastest?
metal cup
Ethan was practicing on his drum set. As Ethan practiced, one of the drums on the drum set was not making any sound. Ethan investigated and discovered the cat was laying inside the drum. Why did the cat laying in the drum affect the sound of the drum?
The cat laying on the drum caused it to stop vibrating, stopping the sound.
True or False
If two cars are racing and the distance is the same, you can compare the times of each car to determine the fastest speed.
True
Cshammal was investigating how the motion of a ball changed depending on the forces applied to it. Cshammal pushed the ball so that it rolled across the table and fell off the edge. How did the motion of the ball change when it fell off the table?
Both the position of the ball and the direction of the ball changed.
Amy filled a glass with ice water, but then left it outside in the Sun while playing with friends. When Amy came back to get the ice water an hour later, the water was warm and the ice was gone. What caused the water to get warm?
Heat from the Sun was transferred to the water.
Amy and Evelyn were listening to a concert. They noticed that the large tuba created lower pitches than the smaller trumpet. Why did the tuba create lower pitches?
The air from the tuba vibrated slower than the air from the trumpet.
Mr. Pedro’s class was testing the speed of their solar cars. They went outside to complete the investigation. What tools would Mr. Pedro’s students need in order to determine the speed?
meterstick and stopwatch
Ethan’s cat was staring out the window when Ethan left for soccer practice. When he returned from practice, the cat was still staring out the window, but Ethan could immediately tell the cat had moved while he was gone. How did Ethan know that his cat had been in motion?
The cat’s position and direction changed.
Cshammal was studying survival skills and learned a way to start a fire without matches or a lighter. Cshammal rubbed two sticks together very quickly for an extended period of time. What types of energy did Cshammal use to start a fire this way?
The energy of motion of rubbing the sticks together generates heat energy that can start a fire.
Mikael plays the xylophone. A xylophone has metal pipes of different lengths. Mikael’s music teacher asked Mikael to play the highest pitch possible. What pipe on the xylophone should Mikael hit?
The shortest pipe since the vibrations will move the fastest.
Klayton decides to skateboard off a ramp with a height of 25 feet. He wants to determine his speed for coasting down the ramp. What data does he need to collect in order to determine his speed?
The time it takes him to go from the top of the ramp to the point at which he stops.
Vivan and Klayton draw a diagram to show the motion of the cars during a race. What information should Vivan and Klayton include in their diagram to best show the motion of the cars?
The starting and ending position of the cars, and the direction they traveled.
Mikael placed ice cubes in warm Kool- Aid. The Kool- Aid’s temperature decreased. What statement explains why the Kool-Aid’s temperature decreased?
Heat flows from the Kool-Aid to the ice.
Klayton said that volume was the same as pitch. Cshammal said that pitch and volume were different. Which person is correct and why?
Cshammal is correct because pitch is how fast or slow sound vibrates (high and low sounds), and volume is related to the strength or intensity of the sound (loud or soft sounds).