Journal
What was the key vocabulary in Activity #3
Kinetic energy & Speed
What two things did we measure in order to get the speed of an object?
Time and distance.
What is the definition for the word speed?
The rate at which an object moves, equal to the distance traveled per time interval.
What is the definition for the word Kinetic Energy?
A.) The energy an object has because of its motion.
B.) The rate at which an object moves, equal to the distance traveled per time interval.
C.) Type of stored energy that an object or system has.
D.) The strength and vitality required for sustained physical or mental activity.
A.) The energy an object has because of its motion.
What were the four vehicles that we studied in quantifying kinetic energy?
Compact car, SUV, Pickup Truck, Bus.
What was the question asked in Bellwork #19
What is an example of an object with kinetic energy going back into potential energy? Explain.
In measuring and graphing speed, the positive upward slope means what?
A.) Car is slowing down.
B.) Car is speed up or moving away from starting point.
C.) Moving backwards.
D.) Constant Speed.
B.) Car is speed up or moving away from starting point.
What is the formula for speed?
Speed = Distance/Time
Give me an example of potential energy shifting into kinetic energy.
Teachers approval of answer.
If a Pickup Truck was going 70 MPH on the highway, how much kilojoules of energy is coming from the pickup?
1,700 Kilojoules
What was the guiding question for Activity #5
What is the mathematical relationship between kinetic energy and the speed of an object, and between kinetic energy and the mass of an object?
In measuring and graphing speed, the straight ling on the graph means what?
A.) Moving away from starting point.
B.) Changing Direction.
C.) Moving at a constant speed or at a stop.
D.) Moving backwards.
C.) Moving at a constant speed or at a stop.
What is the speed of a vehicle that travels 100 miles in 2 hours?
50 miles per hour
In activity #3, what was the purpose of the cylinders used on the carts?
A.) To signify potential energy within the tracks.
B.) To get the different results of mass and kinetic energy within the tracks.
C.) To find results for speed within the track.
D.) To see how slow it makes the cart.
B.) To get the different results of mass and kinetic energy within the tracks.
Which has more kinetic energy a Bus going 35 MPH or a Compact Car going 70 mph?
The bus because it is giving off 1,650 kj as opposed to the compact car that is only giving off 730 kj.
What was the title of activity #4?
Mass & Kinetic Energy
Name at least 4 of the safety features that were studied in Activity #1?
Mass, Engine, Top Speed, Acceleration, Braking Distance, Airbags, Brakes, Turning Radius, Stability Control, Rear-View Camera.
In measuring and graphing speed, the negative downward slope means what?
A.) No motion.
B.) Moving back towards starting point.
C.) Constant speed
D.) Gaining Speed.
B.) Moving back towards starting point.
Newtons cradle was an example of what?
That kinetic energy can be transferred or passed through other objects.
Which has more kinetic energy: A school bus going 15 mph, an SUV going 35 mph, or a compact car going 45 mph?
They all have the same amount of kinetic energy.
In activity #1 on Improving Car & Driver Safety, in the reading there was a passage. What was the boys name who joined his father in the car show.
A.) Randy
B.) Neil
C.) Noah
D.) Nolan
C.) Noah
In student sheet 1.1 what were the four features that were the same for vehicle 1 & 2?
Brakes, Airbags, Stability control, & rearview camera.
If a car is going 45 miles per hour, how long would it take for the car to travel 135 miles?
3 Hours.
What is the relationship between speed and kinetic energy?
A.) The more speed there is the less kinetic energy.
B.) The less speed the more kinetic energy.
C.) The more speed the more kinetic energy.
D.) The more speed the bigger chance of a crash.
C.) The more speed the more kinetic energy.
Which has more kinetic energy? A pickup truck going 55 MPH, a SUV going 70 MPH, or a Bus going 25 MPH.
SUV going 70 MPH because it is giving off the highest amount of energy.