Vocab Spelling Bee
Double the Money
Motion: It's all relative
Vector v. Scalar
Excel-er-8
100
This is the point against which position is measured.
What is R E F E R E N C E P O I N T
100
What is the speed of a boat that travels 10 miles in 30 minutes? Please answer in miles per hour.
What is 20 miles/hour
100
In order for motion to occur, an object's _______________ must change.
What is POSITION
100
You have a quantity of 10 meters.... a) vector or scalar? b) speed, distance, velocity or acceleration?
What is SCALAR & DISTANCE
100
Acceleration is a (SCALER / VECTOR) quantity--which means it contains directional information.
What is VECTOR
200
This is a physical measurement that contains directional information.
What is V E C T O R Q U A N T I T Y
200
A car and a truck are traveling north on a highway. The truck has a speed of 45 mph; the car has a speed of 57 mph. If the truck is ahead of the car, what is the relative velocity? CAR ----->57 mph north TRUCK----->45 mph north
What is 12 mph (SAME direction, SUBTRACT individual speeds-- ...a way to remember, they're both S words)
200
A child is floating in an inner tube on a still lake. His position does not change relative to a tree on the shore. He watches 2 girls job along the shore of the lake. The girls are keeping perfect pace with each other. Neither is pulling ahead of nor falling behind the other. **Relative to WHOM is the child in motion?
What is THE 2 GIRLS
200
1.2 meters/second squared East ----- a) vector or scalar? b) speed, distance, velocity or acceleration?
What is VECTOR & ACCELERATION
200
Acceleration is the change in v---------------, which indicates a change in one of three ways. Name those changes: *when an object...(s------- u-------), (s-------- d--------) and when it (c--------- d------------).
What is Velocity... Those changes occur when an object SPEEDS UP, SLOWS DOWN, or CHANGES DIRECTION.
300
This is a physical measurement that does NOT contain directional information.
What is S C A L A R Q U A N T I T Y
300
If an object travels for 15 minutes with a constant velocity of 12 miles per hour west, what is the acceleration?
What is ZERO/None--(Trick question!!!!!) The velocity is NOT changing. In order to have acceleration, you MUST HAVE a CHANGE in velocity.
300
A child is floating in an inner tube on a still lake. His position does not change relative to a tree on the shore. He watches 2 girls jog along the shore of the lake. The girls are keeping perfect pace with each other. Neither is pulling ahead of nor falling behind the other. *Relative to WHOM is the first girl in motion?
What is THE CHILD (in the inner tube)
300
3.4 feet/hour and slowing -------- a) vector or scalar? b) speed, distance, velocity or acceleration?
What is SCALAR & SPEED
300
A child is sledding. He starts at the top of the hill with a velocity of zero, & 3 seconds later he is speeding down the hill at 12 meters per second. What is the child's acceleration? (DOUBLE POINTS FOR CORRECT ANSWER)
What is (4 meters per second squared down the hill)
400
This is the time rate of change of an object's velocity.
What is A C C E L E R A T I O N
400
A train takes a L O N G time to stop--nearly a mile. If a train is traveling at 30 mph SOUTH & takes 12 minutes to come to a stop, what is the train's acceleration? (make sure your units agree in your equation) (Acceleration = final velocity - initial velocity / time)
What is (-) 150 miles/hour squared...& the negative sign means the acceleration is in the OPPOSITE direction as the velocity. Answer: 150 miles/hour squared NORTH
400
A child is floating in an inner tube on a still lake. His position does not change relative to a tree on the shore. He watches 2 girls jog along the shore of the lake. The girls are keeping perfect pace with each other. Neither is pulling ahead of nor falling behind the other. *Relative to WHOM is the second girl NOT in motion?
What is THE FIRST GIRL (i.e., her jogging partner)
400
2.2 miles/minute West ------- a) vector or scalar? b) speed, distance, velocity or acceleration?
What is VECTOR & VELOCITY
400
Once that same child reaches the bottom of the hill, the sled coasts over a long, flat section of snow. If the child's velocity when the sled starts coasting is 12 meters per second east, and the child coasts for 6 seconds before coming to a halt, what is the child's acceleration? (DOUBLE POINTS FOR CORRECT ANSWER)
What is (-) 2 meters per second squared---but we need to rid the negative sign, & change direction... so the answer is 2 meters per second squared WEST
500
The motion of an object when it is falling solely under the influence of gravity.
What is F R E E F A L L
500
What is the height of a building (in meters) if it takes a dropped rock 4.1 seconds to fall from its roof? Reminder: The acceleration due to gravity for any object is 9.8 meters/second squared in metric units & 32 feet/ second squared in English units.
What is 82.4 meters
500
A glass of water sits on a counter? Is it in motion? (You must have 3 correct responses to get credit.) Is it in motion... *to someone standing still in the house? *relative to any object NOT on earth? *if you walk towards the glass?
What is ... *NO *YES *YES
500
2.2 millimeters/year -------- a) vector or scalar? b) speed, distance, velocity or acceleration?
What is SCALAR & SPEED
500
A good runner can keep up a pace of 0.15 miles per minute for quite some time. If a runner starts from rest & settles into a velocity of 0.15 miles per minute south after 3 seconds of running, what is the runner's acceleration over that 3-second interval? (DOUBLE POINTS FOR CORRECT ANSWER)
What is 3 miles per minute squared south
M
e
n
u