Energy & Energy Transfer Unit Assessment

You have been hired to design a new roller coaster for Acme Amusements. You find information about three different roller coasters that have already been built. Pictures of the first hill of each roller coaster are shown below. The height of the first hill, the top speed, and the number of hills of each roller coaster are also shown below

What pattern do you notice about the top speed of the roller coasters?

• The more riders on the roller coaster, the faster the roller coaster goes.

• The taller the first hill of the roller coaster, the faster the speed of the roller coaster.

• The more hills it has, the faster the speed of the roller coaster.

• There is no pattern that can help you predict the speed of a roller coaster.

Tags

CCSS.5.OA.B.3

If you decide to build a roller coaster with the first hill at a height of 100 feet, what do you think its top speed will most likely be? Use the pattern above to help you figure it out.

• 35 miles per hour

• 52 miles per hour

• 68 miles per hour

• 100 miles per hour

Mateo, Katy, and Robb are all competing in a sled race. They raced each other three times. Mateo always started from Height A, Katy always started from Height B, and Robb always started from Height C. The table shows how fast each person was going when they reached the forest at the bottom of the hill each time. The winner is the person that goes the fastest.

What kind of patterns do you notice? Choose all correct answers.

• Mateo always went faster than Katy but slower than Robb.

• Mateo always went faster than Katy.

• Katy always went slower than Robb but faster than Mateo.

• Katy always went faster than Mateo.

• Katy always went faster than Robb.

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

Robb wants to win the next sled race. He asks for your advice. According to the evidence you can see, what ONE thing would be best to change in order to win?

• Improve his sled's aerodynamics

• Increase his sled's weight

• Use a longer sled

• Wear heavier clothing

• Start at a higher point on the hill.

Abigail is bowling and a gray bowling ball gets stuck in the middle of the lane. She wonders what will happen if she hits the gray ball with another bowling ball. Abigail throws a black bowling ball at the gray bowling ball. What do you predict will most likely happen?

• The black ball will hit the gray ball but will not make a sound. The black ball will transfer all of its energy to the gray ball. The gray ball will start to move.

• The black ball will hit the gray ball and make a sound. The black ball will transfer some of its energy to the gray ball. The gray ball will start to move.

• The black ball will hit the gray ball and make a sound. The black ball won’t transfer energy to the gray ball, so the gray ball will not move.

Abigail throws the black bowling ball at 20 miles per hour and knocks down 9 pins. She wonders if putting the gray bowling ball in the middle of the lane will help her knock down more pins.

If Abigail throws the black ball at 20 miles per hour again, but this time it hits the gray ball first, what do you predict will most likely happen?

• When the black ball collides with the gray ball, all the energy from the black ball will transfer to the gray ball. The gray ball will move toward the pins and have enough energy to knock down 9 or more pins.

• When the black ball collides with the gray ball, some of the energy from the black ball will transfer to the gray ball. The gray ball will move toward the pins, but it will have less energy, so it won’t knock down as many pins.

• When the black ball collides with the gray ball, none of the energy from the black ball will transfer to the gray ball. The gray ball will not move toward the pins and it will not knock down any pins.

Suppose you are riding a bike. As you increase speed, your _________________.

• Energy is used up

• Energy increases

• Stored up energy increases

• Energy decreases

What would happen if the second hill of a roller coaster was taller than the first hill.

• The roller coaster would go faster.

• The roller coaster could not make it over the second hill.

• The roller coaster could not make it over the first hill.

• You could not have very many riders on the roller coaster.

If you were shooting a rubber band and you wanted it to fly across the room, what should you do?

• Pull it back just a little.

• Pull it back then point it at the floor.

• Pull it back a long way.

• Don't pull it back and drop it.

How can you give a domino energy?

• Set it upright.

• put it in the freezer

• spin it around 10 times

• Lay it down on your desk.