District Assessment Review

Identify the independent variable in this investigation.

A student is planning an investigation about the effect of mass on the motion of a car traveling down a ramp with a fixed height. The student will test the car over a distance of 50 cm at four different weights. The student will begin with the base weight of the car and run five races for each weight. The weight will be increased by five grams for three times. The student will measure the amount of time it takes the car to travel 50 cm for each race.

• mass of car

• distance

• height of ramp

• time

Tags

NGSS.MS-PS2-2

Two people are pulling on a chain in opposite directions with forces of 500 N and 600 N. The forces would best be described as ____.

• balanced forces

• unbalanced forces

• action-reaction forces

• gravitational forces

Which of the following is NOT true of gravitational force?

• noncontact

• depends on mass

• depends on speed

• distance

Tags

NGSS.MS-PS2-4

What is shown two blocks west of the park according to the map provided?

• Two trees

• A house

• A school

• Nothing

Tags

NGSS.4-ESS2-2

When a rubber ball is dropped and bounces back up, what type of energy does it have at point C?

• Zero potential energy at point A

• Zero kinetic energy at point C

• Both kinetic and potential energy at point A

• Both kinetic and potential energy at point C

Tags

NGSS.MS-PS3-5

Which best describes the changes in energy as a child goes down a slide?

• A) potential energy decreases and kinetic energy increases

• B) potential energy is constant and kinetic energy increases

• C) potential energy and kinetic energy are constant

• D) mechanical energy decreases

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The graph shows the average speed of a car on four different track sections of a roller coaster. Which statement is false?

• A) The car's kinetic energy is greatest in track section 2.

• B) Track section 2 is likely at the top of a hill.

• C) Track section 2 is likely at the bottom of a hill.

• D) The car's kinetic energy varies even though its mechanical energy remains almost constant.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

NGSS.MS-PS3-1

Which of the following statements about the particles in a material is true?

• A) The average kinetic energy of the particles increases as the temperature increases.

• B) The average kinetic energy of the particles decreases as the temperature increases.

• C) The average kinetic energy of the particles in a substance never changes.

• D) There is no relationship between kinetic energy and temperature

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

When a pot of water is put on a stove, the water at the surface gets hot primarily by ____.

• radiation

• conduction

• convection

• condensation

Tags

NGSS.MS-PS3-3

At which temperature are the particles in a pencil moving the fastest?

• 50°C

• 40°C

• 30°C

• 20°C

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4