Welcome to Tahoma Jeopardy! Force and Motion Edition

Directions: Scroll through the presentation and enter the answers (which are really the questions) and the questions (which are really the answers). Enter in the categories on the main game boards. As you play the game, click on the TEXT DOLLAR AMOUNT that the contestant calls, not the surrounding box. When they have given a question, click again anywhere on the screen to see the correct question. Keep track of which questions have already been picked by printing out the game board screen and checking off as you go. Click on the “Game” box to return to the main scoreboard. Enter the score into the black box on each players podium. Continue until all clues are given. When finished, DO NOT save the game. This will overwrite the program with the scores and data you enter. You MAY save it as a different name, but keep this file untouched!

Round 1 Tony & Homer Kasey Kahne Crash Test Dummies

Scores Center of Mass Speed Newton’s Laws Graphing Motion Newton’s Laws Potpourri $100 $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 $500

What is a term often use instead of “Center of Mass?” $100 What is a term often use instead of “Center of Mass?”

Center of Gravity Or Center of Balance $100 Center of Gravity Or Center of Balance Scores

Why is the “Center of Mass” not in the center? $200 Why is the “Center of Mass” not in the center?

$200 The center of mass is located at a point where half the mass is on one side and the other half of the mass on the opposite side of the point, not the measured center of length. Scores

How is it possible for the bird to balance like this? $300 How is it possible for the bird to balance like this?

The bird is equal weight left to right so it balances side to side. $300 The bird is equal weight left to right so it balances side to side. The mass of the wingtips equal the mass of the body so it is balanced front to back Scores

$400 What is an example of something that will never fall over no matter what position you put it in?

$400 A baseball! The center of mass does not change to matter what position you put it in. Scores

$500 Because of the low center of mass, Weebles, like this clown will wobble but what won’t they do?

$500 Fall down! https://www.youtube.com/watch?v=dFzhjnjXc2o Scores

What is the formula for Speed? $100 What is the formula for Speed?

$100 Speed = Distance / Time Scores

What are the common units used for speed in science? $200 What are the common units used for speed in science?

$200 Meters per Second m/s Scores

What do we call speed with a direction? $300 What do we call speed with a direction? (speed + direction = ?)

$300 Velocity Scores

What is the speed of a car that travels 180 miles in 4 hours? $400 What is the speed of a car that travels 180 miles in 4 hours?

180 miles / 4 hours = 45 miles per hour $400 180 miles / 4 hours = 45 miles per hour 45 mph Scores

What do we call the change in speed over time? $500 What do we call the change in speed over time? m/s2

$500 Acceleration It could be positive or negative. A negative acceleration can also be called a deceleration. Scores

How does a cars mass affect the force of impact in a collision? $100 How does a cars mass affect the force of impact in a collision?

$100 Newton’s second law states F=ma. If the mass of a car is increased and the acceleration remains the same, the force must increase Scores

What must you do to an object if you want it to accelerate more? $200 What must you do to an object if you want it to accelerate more?

$200 If you want an object to accelerate more and its mass remains the same, you must apply a larger force F=ma Scores

$300 What does Newton’s third law tell us about the force we exert on a chair?

The chair exerts an equal force back? $300 The chair exerts an equal force back? Scores

What law best explains why a crumple zone in a car helps save lives? $400 What law best explains why a crumple zone in a car helps save lives?

$400 Second f=ma The time of impact is increased which decreases the acceleration. Since the mass of the car remains the same, it also decreases the force. Scores

$500 If boxer A hits boxer B in the face with a force of 250 Newtons, what is boxer B doing to boxer A?

$500 Boxer B is hitting boxer A’s glove with his face with a force of 250 Newtons. Newton’s Third Law. For every action there is an equal and opposite reaction. Scores

Describe the motion represented on the graph below $100 Describe the motion represented on the graph below

$100 The graph represents a constantly changing speed: an acceleration. Since it is curving upward, the object is increasing speed as it moves away from the origin. Scores

Describe the motion represented on the graph below $200 Describe the motion represented on the graph below d t

$200 The object would be stopped (not changing distance over a change in time) Scores

Describe the motion represented on the graph below $300 Describe the motion represented on the graph below d t

since the distance is decreasing over time $300 Moving slowly toward the origin (or start point) since the distance is decreasing over time Scores

Describe the motion represented on the graph below $400 Describe the motion represented on the graph below d t

$400 Moving slowly away from the origin, and then immediately moving back toward the origin at the same speed Scores

Describe the motion represented on the graph below $500 Describe the motion represented on the graph below d t

$500 move away quickly… BUT then the rest is impossible because the graph shows time going backwards! Scores

$100 Which of Newton’s Laws apply to a book sitting on the floor overnight and not changing its position in space?

Law of Inertia: an object “wants” to keep doing what it was doing. $100 Newton’s 1st Law Law of Inertia: an object “wants” to keep doing what it was doing. (in this case not going anywhere) Scores

$200 Which of Newton’s laws apply to the amount of force needed to stop a school bus?

Force = mass x acceleration $200 Newton’s 2nd Law (F = m x a) (or F = ma) Force = mass x acceleration (Since mass is large, the force will also be large) Scores

$300 Which law states that for every force there is an equal and opposite reaction force?

$300 Newton’s 3rd Law Scores

$400 Which of Newton’s Laws state: The amount of force an object has depends on the mass of the object and its acceleration.

$400 Newton’s 2nd Law ( F = m x a ) Scores

Which of Newton’s Laws apply? $500 Which of Newton’s Laws apply? A slow moving bowling ball can have the same energy as a fast moving golf ball.

(big and slow = small and fast) $500 Newton’s 2nd Law Force (energy) = m x a (big and slow = small and fast) Scores

What type of energy does friction always create? $100 What type of energy does friction always create?

$100 HEAT ! Scores

What would you call the forces represented in the diagram below? $200 What would you call the forces represented in the diagram below?

$200 Balanced! The equal length arrows indicate the same force in opposite directions. Scores

What type of motion would be represented by the graph below? $300 What type of motion would be represented by the graph below?

A constant speed away from the origin (detector) $300 A constant speed away from the origin (detector) Scores

What type of motion would be represented by the graph below? $400 What type of motion would be represented by the graph below?

An acceleration. Curves indicate a change in speed. $400 An acceleration. Curves indicate a change in speed. Scores

“perpetual motion machines” (keep moving forever on their own) $500 Why are “perpetual motion machines” (keep moving forever on their own) impossible on Earth?

$500 There will always be some friction (mechanical friction and probably air friction too) that converts the kinetic (motion) energy into heat (and maybe other forms of energy such as sound, light, etc.) Scores