KE
These two things affect kinetic energy
What is mass and speed?
These two things affect potential energy
What is mass and location/height?
In the metric system, mass is commonly measured in these 3 units
What are mg, g, and kg?
When performing our labs, what was the unit data were measured in
What is cm?
If two trucks of the same mass, going different speeds (10 km per hour and 60 km per hour), both hit an adult, female deer, this truck would do the most damage
What is the truck traveling at 60 km/hr?
If two 5 kg bowling balls are suspended in the air at different heights (1 meter above the ground and 10 meters above the ground), this ball would have more potential energy
What is the ball suspended at 10 m?
In the metric system, length and distance are commonly measured using these 3 units
What are cm, m, and km?
In sledding challenge 1, we used two different sized balls to investigate the affect this has on kinetic energy
What is mass?
Show an example of kinetic energy
(Student should show movement of something)
Considering the picture of the roller coaster, at this point you would except the highest potential energy
What is point A?
Speed and velocity are very similar. This is the difference between the two
What is direction?
In sledding challenge 2, we modified our ramps to investigate the affect this has on kinetic energy
What is height (location)?
OR
What is potential energy?
At this point on the picture you would expect to find maximum kinetic energy
What is point B?
A crew was called in to knock down an old abandoned building. Because the building is small, the crew chose to use a 450 kg ball to swing from the crane instead of a larger 1000 kg ball; however, the small ball didn’t work. Using what you know about potential energy, answer the question below.
The wrecking company could do these two things to increase the energy of the ball so that the building can be knocked down
What are the mass of the ball and the height the crane releases the ball from?
This is the equation for speed
S = D/T
Explain why the rubber band shot further as the pull back distance increased using the terms kinetic energy and potential energy
The further the rubber band is pulled back, the more potential energy there is. Once released, the energy in potential form converts into kinetic form. The more potential energy, the more kinetic energy, the further the rubber band was able to travel.
Kinetic energy comes from this source
What is potential energy?
Potential energy comes from these two sources
What are gravity and elasticity?
The USA uses the Imperial system of measurement for many things, including cooking and calculating speed. However, scientists in the USA refrain from using this system and actively use the metric system instead for these 2 reasons
What are communication and data comparison?
Draw a model of what you did in the bouncy ball lab and label where PE and KE were at their highest
highest PE = moment of rest before initial drop
highest KE = right before the ball hits the ground/counter