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