Ryan and his family are visiting a theme park and he wants to ride a roller coaster. At which point in the diagram would he expect to have the greatest amount of potential energy?

• Point W

• Point X

• Point Y

• Point Z

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

Carlos stomps a soda can flat and throws it away. Which of the following statements best describes the change made in the soda can?

• The soda can kept the same mass as it changed in shape only.

• The soda can lost mass as it was changed into a smaller size.

• The soda can paper gained mass because its shape changed.

• The soda can lost mass as it was crumpled.

Joanne decided to go on a picnic in the park. While she was packing her lunch, she ate half of her apple and was going to save the rest for later. On her way home, she started to eat the rest of the apple when she noticed that it had started to turn brown and rot. What happened to Joanne's apple?

• A chemical change occurred, because a new substance was forming.

• A chemical change occurred, because a new substance did not form.

• A physical change occurred, because a new substance was forming.

• A physical change occurred, because a new substance did not form.

Tags

NGSS.MS-PS1-2

Which of the following is an example of how heat energy can be used to influence the rate at which a chemical change occurs?

• increasing the heat in an oven to make a cake bake faster

• increasing the heat on a stove to make a pot of water boil faster

• decreasing the temperature in the dryer to increase the drying time

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A ball with a mass of 3 kilograms rolls down a ramp, 50 meters long. The ramp started from a height of 10 meters. When the ball reached the end of the ramp its kinetic energy was measured. It was slightly less than its potential energy at the top of the ramp. Which of the following statements best explains the difference between the ball’s potential energy at the top of the ramp and its kinetic energy at the bottom of the ramp?

• Some of the energy is destroyed as the ball rolls down the ramp.

• The Law of Conservation of Energy does not apply to rolling objects.

• Some of the ball’s mass is converted to energy as it rolls down the ramp.

• Some of the energy is converted to heat from friction as the ball rolls down the ramp.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Use the periodic table to answer the question. Which list shows elements with properties that are most similar to each other?

• Cl, Br, I, At

• N, O, F, Ne

• Ca, Sc, Sr, Y

• P, As, Sb, Bi

Jackson noticed that the music from his cell phone sounds louder when laid on his desk than when he held it up in the air. Which of the following explains the difference in sound that Jackson is experiencing?

• The desk amplifies the sound through resonance.

• Sound travels faster through solids than through air.

• The sound waves are absorbed by the desk, making the music seem louder.

• The desk reflects sound waves, which adds to the direct sound from the phone.

Tags

NGSS.MS-PS4-2

Which process describes how heat is transferred between his finger and the mug?

• The heat will transfer from the finger toward the mug until they both reach the same temperature.

• The heat will transfer from the mug toward the finger until they both reach the same temperature.

• The heat will transfer from his finger toward the mug until the mug’s temperature is higher than the finger.

• The heat will transfer from the mug toward the finger until the finger’s temperature is higher than the mug.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

According to the particle theory of matter, particles are constantly in motion. The motion of particles characterizes the states of the matter. Which list ranks the states of matter, according to the motion of particles, from fastest to slowest?

• solid, liquid, gas

• gas, solid, liquid

• liquid, gas, solid

• gas, liquid, solid

Tags

NGSS.MS-PS1-4

While watching a video in class, Jennifer observed that astronauts were able to move large containers around easily on the Moon. However, she remembered that the same containers seemed more difficult to move when they were training on Earth. How does the mass and weight of the containers on Earth compare to mass and weight of the containers on the Moon?

• The mass of the containers on the Moon is less than on Earth.

• The weight of the containers on the Moon is less than on Earth.

• The mass and weight of the containers are both less on the Moon.

• The mass and weight of the containers are the same on the Earth and Moon.