NC RP 2A

The 5th graders were playing a game of tug-of-war.  The class was divided equally with half the class on one side of the rope and the other half on the opposite side.  For 5 minutes the students pulled and pulled but neither side could pull the flag to one side or the other.  Choose the description of the forces during the 5th grade tug-of-war.

• The forces were unbalanced in the game.

• The forces were friction, gravity, and chemical energy.

• The students all had the same amount of strength.

• The forces were balanced in the game.

Molly is watching a wind-up toy walking across a table. She observes that the toy covers 1 cm every second for 10 seconds. Which graph do you think most closely represents the toy's  journey across the table?

• A

• B

• C

• D

Every morning John walks a half mile to school.  One Morning, halfway to school, he stopped to watch a some deer in the field.  When he realized he was late, he ran the rest of the way to school to avoid being late.  Which graph below shows John's speed during his walk to school?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1

Crystal recorded the distance and time she and Lisa drove their race cars. Which best describes the difference in the motion of the two race cars?

• Crystal’s race car is decreasing speed, and Lisa’s race car is

  increasing speed.

• Crystal’s race car is increasing speed, and Lisa’s race car is

  decreasing speed.

• Crystal’s race car has not moved, and Lisa’s race car is moving

  forward.

• Crystal's race care is moving at a constant speed, and Lisa's race car is standing still.

Tags

NGSS.MS-PS3-1

The graph below represents a car traveling. Based on the graph, what can be inferred about the speed of the vehicle?

• It is not moving.

• It is slowing down.

• It is traveling at a constant speed.

• It is speeding up.

Tags

NGSS.MS-PS3-1

Which information is needed to determine the speed of an object?

• the weight of the object and the distance it travels

• the pull of gravity on the object and the amount of time it travels

• the inertia of the object and the amount of force that is pushing it

• the distance the object travels and the time it takes to travel that

  distance

The graph below shows the motion of two cars. How does the motion of the two cars compare?

• Car 1 is slowing down, and Car 2 is speeding up.

• Car 1 is not moving, and Car 2 is maintaining a constant speed.

• Car 1 is maintaining a constant speed, and Car 2 is speeding up.

• Car 1 is speeding up, and Car 2 is maintaining a constant speed.

Tags

NGSS.MS-PS3-1

The graph below represents a traveling car. What can be determined about the speed at which the car is traveling?

• The car is accelerating.

• The car is slowing down.

• The car is traveling at various speeds.

• The car is traveling at a constant speed.

Tags

NGSS.MS-PS3-1

What is the primary force that keeps the planets in orbit around the Sun?

• Gravitational force

• Magnetic force

• Nuclear force

• Electromagnetic force

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which of the following is a chemical change?

• Melting of ice

• Boiling of water

• Rusting of iron

• Breaking of glass

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5