QUES: Mechanical energy is a combination of the energy of motion or position. This type of energy describes objects that are moving or could move. A moving ball can have energy from motion. An arrow can also have the energy of motion. Both are types of mechanical energy. Can you think of some other examples? Where does the energy of motion come from? It comes from the energy created by position. This energy is stored energy. This means it is not moving yet, but it has the potential to move. How can you store energy? The arrow gains energy from the drawn bow. As the arrow is released, the bow releases its stored energy and puts the arrow into motion. Can you think of some other ways to store energy using position?
Do you have any questions?
MY QUESTION: What type of energy is created by position?

QUES: (CNN) -- Britain's Chris Froome won the 17th stage of the Tour de France on Wednesday to strengthen his grip on the yellow jersey. Froome completed Wednesday's 32-kilometer time trial in 51 minutes 33 seconds, nine seconds ahead of Spain's Alberto Contador with his compatriot Joaquim Rodriguez Oliver finishing a further second behind in third. "I couldn't believe it when I got over the line and saw I had the fastest time," Froome said after his third stage win of this year's tour. "I went into today thinking I was going to try and limit my losses, thinking about the days to come now. So to go through the finish line with the fastest time, I really didn't see that coming." On mountainous terrain along a frequently twisting route most of the riders opted for their traditional road bikes over the more aerodynamic machines used in time trials. But Froome opted to use both on the stage, switching to a time trial model for the final 12-kilometer descent. The swap proved decisive as the Briton clawed back a 20-second advantage Contador had built up earlier in the stage. The Spaniard now moves up to second overall, four minutes 34 seconds behind Froome with just four stages remaining. Contador's Saxo-Tinkoff teammate Roman Kreuziger is now third and trails Froome by four minutes and 51 seconds. Thursday sees the riders tackle the gruelling 172.5-kilometer 18th stage which concludes with a double ascent of Alpe d'Huez over the last 60 kilometers.
Do you have any questions?
MY QUESTION: How long did Fromme bike on the 17th stage before the final descent?

QUES: Fossils may form in other ways. Fossils can be preserved almost completely. In this process, the organism doesnt change much. As seen below, tree sap may cover an organism. With time, the sap hardens. It turns to into amber. The original organism is preserved. This is very exciting for scientists. They are able to study the DNA of the organism that no longer lives on Earth. Some animals have been found frozen in ice. Others have been found in tar pits after falling in. Molds and casts are another way organisms can be fossilized. Have you ever walked in soft mud and left footprints? Once in a while, these traces of organisms can be preserved. In this case, nothing is left of the organism. A mold is an imprint of an organism that is preserved in rock. The organisms remains break down completely. There is nothing left of the original plant and animal.
Do you have any questions?
MY QUESTION: When tree sap covers an organism and hardens, what does it become?

QUES: Porky is looking all over the big city for a hotel room , but due to a convention there are no vacancies . Porky takes the only available vacancy at one hotel , but will have to share with Daffy Duck , who is a very loud , obnoxious and annoying sort . Daffy introduces his invisible kangaroo friend '' Hymie '' , but Porky wo n't believe that . Daffy spends the rest of the night annoying Porky : pestering him with questions , shaking the bed , spilling water from a glass , hogging the blanket and finally literally sending the both of them flying off the bed when Daffy kicks , and startles , Porky with his literally frozen feet . Fed up with his antics , Porky stuffs Daffy in a pillow case and drops him out of the window . As Porky goes back to bed , Daffy returns bandaged , but shakes them off and prepares to get revenge . Daffy tricks the half-asleep pig into stepping out of a window thinking he 's boarding a train . Daffy hides the window saying it 's '' too gruesome '' to watch . Suddenly he hears train noises , and behind the shade , sees the still-drowsy Porky pulling away on an actual train and waving at Daffy . Daffy finds this silly . Then he bounces all around the room , '' Hoo-Hoo ! '' - ing wildly .
Do you have any questions?
MY QUESTION:
Why is Porky having some difficulty with getting a room?