Throughout the reflection, make sure you have a copy of the Student Guide and your data tables. Use the drop-down menus to complete the statements.
In Part I of this experiment, the
was intentionally manipulated. This was the independent variable. The dependent variable measured was the
.
In Part II of this experiment, the
was intentionally manipulated. This was the independent variable. The dependent variable measured was the
.
In Part I of this experiment, the independent variable was the amount of light. The dependent variable measured was the rate of photosynthesis.
In Part II of this experiment, the independent variable was the concentration of carbon dioxide. The dependent variable measured was the rate of photosynthesis.
FOR EDGUNITY: In Part I of this experiment, the
✔ car hitting a barrier
was intentionally manipulated. This was the independent variable. The dependent variable measured was the
✔ velocity of the washer
.
In Part II of this experiment, the
✔ force applied to the car
was intentionally manipulated. This was the independent variable. The dependent variable measured was the
✔ acceleration of the car
.
FOR EDGUNITY: In Part I of this experiment, the independent variable was the car hitting a barrier. The dependent variable measured was the velocity of the washer.
In Part II of this experiment, the independent variable was the force applied to the car. The dependent variable measured was the acceleration of the car.
Different measurements are expressed in different units. Choose the correct SI units for the following types of measurement.
The SI units for measuring the velocity of the car:
The SI units for measuring the acceleration of the car:
The SI units for measuring force:
The SI units for measuring mass:
The SI units for measuring the velocity of the car: meters per second (m/s)
The SI units for measuring the acceleration of the car: meters per second squared (m/s^2)
The SI units for measuring force: Newtons (N)
The SI units for measuring mass: kilograms (kg)
A 6-column table with 3 rows in the second, third, and fifth columns and 1 row in the other columns. The first column labeled Number of Washers has entry 1 washer mass = 4.9 grams. The second column labeled Trial has entries trial number 1, trial number 2, trial number 3. The third and fourth columns labeled Time to travel 0.25 meters t subscript 1 (seconds) have entries in the third column 2.24, 2.21, 2.23 and average 2.23 in the fourth column. The fifth and sixth columns labeled time to travel 0.5 meters t subscript 2 (seconds) have entries in the fifth column 3.16, 3.08, 3.15 and in the sixth column average 3.13.
What is the average velocity of the car over the first 0.25m?
m/s
What is the average velocity of the car over the second 0.25m?
m/s
To find the average velocity of the car over the first 0.25m, we divide the distance traveled by the time it took to travel that distance.
The average time to travel 0.25m is 2.23s.
So, the average velocity of the car over the first 0.25m is:
Velocity = Distance / Time
Velocity = 0.25m / 2.23s
Velocity ≈ 0.112 m/s
The average velocity of the car over the first 0.25m is approximately 0.112 m/s.
To find the average velocity of the car over the second 0.25m, we follow the same process.
The average time to travel 0.5m is 3.13s.
So, the average velocity of the car over the second 0.25m is:
Velocity = Distance / Time
Velocity = 0.25m / 3.13s
Velocity ≈ 0.080 m/s
The average velocity of the car over the second 0.25m is approximately 0.080 m/s.
FOR EDGUNITY: A 6-column table with 3 rows in the second, third, and fifth columns and 1 row in the other columns. The first column labeled Number of Washers has entry 1 washer mass = 4.9 grams. The second column labeled Trial has entries trial number 1, trial number 2, trial number 3. The third and fourth columns labeled Time to travel 0.25 meters t subscript 1 (seconds) have entries in the third column 2.24, 2.21, 2.23 and average 2.23 in the fourth column. The fifth and sixth columns labeled time to travel 0.5 meters t subscript 2 (seconds) have entries in the fifth column 3.16, 3.08, 3.15 and in the sixth column average 3.13.
What is the average velocity of the car over the first 0.25m?
3.13
⇒ 0.11 m/s
What is the average velocity of the car over the second 0.25m?
0.080
⇒ 0.28 m/s
Apologies for the confusion in the response.
To find the average velocity of the car over the first 0.25m, we divide the distance traveled by the time it took to travel that distance.
The average time to travel 0.25m is 2.23s.
So, the average velocity of the car over the first 0.25m is:
Velocity = Distance / Time
Velocity = 0.25m / 2.23s
Velocity ≈ 0.112 m/s
The average velocity of the car over the first 0.25m is approximately 0.112 m/s.
To find the average velocity of the car over the second 0.25m, we follow the same process.
The average time to travel 0.5m is 3.13s.
So, the average velocity of the car over the second 0.25m is:
Velocity = Distance / Time
Velocity = 0.25m / 3.13s
Velocity ≈ 0.080 m/s
The average velocity of the car over the second 0.25m is approximately 0.080 m/s.
A 6-column table with 1 row. The first column labeled Number of Washers has entry 2. The second column labeled initial velocity v subscript 1 (meters per second) has entry 0.13. The third column labeled final velocity v subscript 2 (meters per second) has entry 0.36. The fourth column labeled Time to travel 0.25 meters t subscript 1 (seconds) has entry 1.92. The fifth column labeled time to travel 0.5 meters t subscript 2 (seconds) has entry 2.61. The sixth column labeled Acceleration a = StartFraction (v subscript 2 minus v subscript 1) over (t subscript 2 minus t subscript 1) EndFraction (meters per second squared) has entry empty.
The acceleration of the car with the data in the table above would be
m/s2.
If the applied force were cut in half, what do you predict the acceleration would be?
m/s2