State Testing Practice Test 2

What is the object that causes the light rays to focus to a point?

• a prism

• a mirror

• a convex lens

• a concave lens

Tags

NGSS.MS-PS4-2

Which of these chemical symbols and formulas represents a compound?

• C

• Co

• O2

• CO

Tags

NGSS.MS-PS1-1

A student wants to plan a procedure to study convection. The student has the following materials: a match, an ice cube, a metal pan, a clear pot, a bottle of water, a bottle of food coloring, two thermometers, a hot plate. Which procedure would be MOST useful for investigating convection?

• Make observations of a burning match.

• Heat water in a clear pot, and then add food coloring to the pot.

• Place an ice cube on a warm metal pan, and then observe it as it melts.

• Measure outside air temperature using one thermometer in direct sunlight and one in shade.

Tags

NGSS.MS-PS3-4

An acorn falls from a tree. Which of these BEST describes how the energy of the acorn changes as the acorn falls?

• The gravitational potential energy of the acorn changes into kinetic energy as the acorn falls.

• The kinetic energy of the acorn changes into gravitational potential energy as the acorn falls.

• Both the gravitational potential energy and the kinetic energy of the acorn increase as the acorn falls.

• Both the gravitational potential energy and the kinetic energy of the acorn decrease as the acorn falls.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The diagram is a representation of the periodic table. Neutral atoms of a certain element have 14 electrons. Which letter represents the location of this element on the periodic table?

• A) A

• B) B

• C) C

• D) D

Tags

NGSS.MS-PS1-1

Student 1 claims that electric fields can affect objects only when the objects are in direct contact. Student 2 does not agree with Student 1. Which statement should Student 2 use as evidence that Student 1 is INCORRECT?

• An atom’s neutrons and electrons are located in its nucleus.

• A balloon will stick to a wall only if the balloon has no overall charge.

• Rubbing a plastic rod with a silk cloth transfers protons from the cloth to the rod.

• Two negatively charged balloons will repel each other when brought close together without touching.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A diagram of a transverse wave is shown. Which letter indicates the amplitude of the wave?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

The drawing shows a skydiver with an open parachute. Select the TWO statements that BEST explain the forces and motion of the skydiver.

• When the force of G is greater than the force of A, the skydiver will accelerate downward.

• When the force of W is less than the force of G, the skydiver will move in the opposite direction of W.

• When the forces of A and G are equal, the skydiver is not moving.

• When the force of W is greater than the force of G, the skydiver will move up.

• When the forces of A, G, and W are all equal, the forces on the skydiver are balanced.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

The diagram shows light passing from one medium into another. Which of these must be true about Medium A and Medium B?

• Medium A is a solid, and Medium B is a liquid.

• Medium A is more transparent than Medium B.

• Medium B has a higher density than Medium A.

• Medium B has a higher temperature than Medium A.

Tags

NGSS.MS-PS4-2

Which statement BEST compares the motion and position of particles in nitrogen gas to the motion and position of particles in liquid nitrogen?

• Particles in nitrogen gas are more spread out and move more quickly than particles in liquid nitrogen.

• Particles in nitrogen gas are closer together and move more quickly than particles in liquid nitrogen.

• Particles in nitrogen gas are more spread out and move more slowly than particles in liquid nitrogen.

• Particles in nitrogen gas are closer together and move more slowly than particles in liquid nitrogen.

Tags

NGSS.MS-PS1-4