Physics Team Trivia!
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Transcript of Physics Team Trivia!
Physics Team Trivia!Quarterly Exam I
Mr. Richter
First Quarter Categories
Precision and Accuracy Upward Launches Metric Prefixes Acceleration
Precision and Accuracy
Student A measures a distance to be 4.3 meters and Student B measures the same distance to be 4.32 meters. Student A is:A. Less preciseB. Less accurateC. Both less precise and less accurate.D. Neither less precise nor less accurate.
Precision and Accuracy
A. Student A is equally as accurate but less precise, measuring only to the nearest tenth of a meter.
Upward Launches
An object is launched upward at +5m/s. What is its acceleration at the peak of its flight?
Upward Launches
-9.81 m/s2
Metric Prefixes
What metric unit is 100,000 larger than a centimeter?
Metric Prefixes
A kilometer
Acceleration
What is the acceleration of an object traveling at a constant 4 m/s for 3 seconds?
Acceleration
0 m/s
Picture Round
Second Quarter Categories
Significant Figures Acceleration Free Fall Variables
Significant Figures
The dimensions of a room are 14.3 m by 6.2 meters. What is the area of the room with significant figures?
Significant Figures
87 m2. Two significant figures.
Acceleration
What is the acceleration of an object traveling to the right whose speed is decreasing by 5 km/h every second?
Acceleration
-5 km/h/s
Free Fall
Assuming no air resistance, which, if either, will fall faster: a brick or a feather?
Free Fall
Neither. In a vacuum, all objects fall at the same rate.
Variables
A student decides to see if there is a relationship between how loud his music is and how fast he drives as a result. Name the independent and dependent variables.
Variables
Independent: how loud the music is Dependent: how fast he drives
Half Time!Review the rules.
Calculate
A potted plant falls from a balcony and takes 1.20 seconds to hit the ground. How high is the balcony.
Half Time: Calculate
7.06 m high
Third Quarter Categories (2, 4, 6 or 8 points)
Metric Prefixes Upward Launches Average Velocity PvT Graphs
Metric Prefixes
How many millimeters are in 32 meters?
Metric Prefixes
32,000 millimeters
Upward Launches
A golf ball is struck from the ground and takes 2.2 seconds to reach its maximum height. What is the total time it is in the air before it returns to the ground?
Upward Launches
4.4 seconds
Average Velocity
A wide receiver runs 35 meters down field and then 10 meters back up field in 7 seconds. What is his average velocity?
Average Velocity
3.6 m/s downfield
PvT Graphs
Sketch the PvT graph of an object starting from rest at the origin, and experiencing constant negative acceleration.
PvT Graphs
Third Quarter Bonus
Third Quarter Bonus: Vocab
Write the terms that are defined by the following definitions:
1. how close a measurement is to the true value
2. how exact a measurement is
3. a variable that is kept the same in an experiment
4. a volume 1,000,000 times smaller than one liter (L)
5. a coordinate systems for specifying the location of objects in space
Third Quarter Bonus: Vocab
1. Accuracy
2. Precision
3. Control Variable
4. Microliter (μL)
5. Frame of Reference
Fourth Quarter Categories
Scientific Notation The Scientific Method Acceleration Calculation VvT Graphs
Scientific Notation
Write the following two measurements in scientific notation.
432 0.0037
Scientific Notation
4.32 x 102
3.7 x10-3
The Scientific Method
All scientific experimentation comes from one first step. What is it?
The Scientific Method
A question!
Acceleration Calculation
A cyclist pedaling at 3.5 m/s accelerates at a rate of 1.2 m/s2 for 4.5 seconds. What velocity does the cyclist reach?
Acceleration Calculation
8.9 m/s
VvT Graphs
Sketch the Velocity vs. Time Graph of an object moving backward with zero acceleration.
VvT Graphs
Final Round
Calculation
A race car driver brakes to a stop from 32.0 m/s in 6.00 seconds. What is his acceleration? How far does he travel while he is stopping?
Final Round
-5.33 m/s2
96.0 m