Based on these properties, which element is most likely a nonmetal?

• Element 1

• Element 2

• Element 3

• Element 4

Which statements correctly compare metals and nonmetals?

• Metals tend to be good conductors of thermal energy. Nonmetals tend to be good insulators of thermal energy.

• Metals are dull and brittle. Nonmetals are shiny and malleable.

• Metals are good insulators of electricity. Nonmetals tend to be good conductors of electricity.

• Metals cannot be stretched into thin wires. Nonmetals can be stretched into thin wires.

Tags

NGSS.MS-PS3-3

A student is trying to classify an unidentified, solid gray material as a metal or a nonmetal. Which question will best help the student classify the material?

• Is the material malleable or ductile?

• Does the material feel hard to the touch?

• Will the material float in water?

• Does the material feel rough or smooth?

Which two carts experience the same net force?

• A) Carts 1 and 2

• B) Carts 2 and 3

• C) Carts 1 and 3

• D) Carts 2 and 4

Tags

NGSS.MS-PS2-2

A toy truck is at rest on the floor. Which statement describes the forces acting on the toy truck?

• The forces are balanced so motion occurs.

• The forces are balanced so no motion occurs.

• The forces are unbalanced so motion occurs.

• The forces are unbalanced so no motion occurs.

Tags

NGSS.MS-PS2-2

Which statement BEST describes the kinetic and potential energies of the cart at Location X compared with the kinetic and potential energies of the cart at Location Y?

• The cart has more potential energy and less kinetic energy at Location X than it has at Location Y.

• The cart has less potential energy and more kinetic energy at Location X than it has at Location Y.

• The cart has the same amounts of potential energy and kinetic energy at Location X as it has at Location Y.

• The cart has more potential energy and kinetic energy at Location X than it has at Location Y.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

A snowboarder practices sliding down a hill. The diagram shows three positions of the snowboarder. Which table best compares the amounts of potential energy and kinetic energy of the snowboarder at each position?

• Position 1: 1. There is less potential energy than kinetic energy. 2. The potential energy is equal to the kinetic energy. 3. The potential energy is more than the kinetic energy.

• Position 2: 1. There is more potential energy than kinetic energy. 2. The potential energy is equal to the kinetic energy. 3. There is less potential energy than kinetic energy.

• Position 3: 1. There is more potential energy than kinetic energy. 2. There is less potential energy than kinetic energy. 3. There is more potential energy than kinetic energy.

• Position 4: 1. There is more potential energy than kinetic energy. 2. There is more potential energy than kinetic energy. 3. There is less potential energy than kinetic energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which statements accurately describe the potential and kinetic energy of this bicyclist?

• Kinetic energy increases. Potential energy decreases.

• Kinetic energy increases. Potential energy remains constant.

• Kinetic energy remains constant. Potential energy decreases.

• Kinetic energy remains constant. Potential energy increases.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Which statement best describes the energy of the roller coaster as it slows down while traveling to the top of the coaster?

• The cart gains both kinetic and potential energy.

• The cart gains kinetic energy and loses potential energy.

• The cart loses kinetic energy and gains potential energy.

• The cart loses both kinetic and potential energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A demonstration helps students understand a principle of roller coaster design. Which answer choice correctly describes the ball’s kinetic and potential energy?

• The ball has more potential energy at position X than at position Z.

• The ball has more kinetic energy at position Y than at position W.

• The potential energy and kinetic energy of the ball are equal at position X.

• The potential energy and kinetic energy of the ball are greatest at position Z.

Tags

NGSS.MS-PS3-2