NC.5.OA.2

Choose the BEST answer that describes how the mass of an object affects its motion.

• The greater the mass of an object, the slower the motion of the object.

• The greater the mass of an object, the faster the motion of the object.

• The greater the mass of an object, the greater the force to move the object.

• The greater the mass of an object, the greater the distance the object will travel.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

Melissa and Gabe were testing the flight of leaves as they tossed them in the air.  The leaves would go up and then came to a rest on the ground.  What force made the leaves land on the ground?

• gravity

• friction

• air pressure

• mass

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Choose the BEST description of the force of motion of the jumping frog.

• unbalanced forces

• balanced forces

• the force of gravity

• the force of friction

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.

How is motion affected when forces are unbalanced acting on an object?

• Change the speed, change direction, & cause and object at rest to move or change positions

• change speed

• change directions

• object at rest will move or change positions.

Tags

NGSS.MS-PS2-2

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

What happens when 2 equal forces act on an object in opposing directions?

• no movement; won't move

• Object will move in the direction of the force

• Object will move in the opposite direction of the force

• the object flies

What is the primary force that causes objects to fall to the ground?

• Gravity

• Friction

• Magnetism

• Electricity

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Which of the following best describes the role of friction in motion?

• Friction speeds up motion

• Friction slows down motion

• Friction has no effect on motion

• Friction changes the direction of motion