P.5.6 Formative Studyguide

Tim noticed that a ball kept rolling off a table. What caused the ball to roll?

• The table had no friction, so the ball just rolled off the table.

• The ball's internal energy caused it to roll off the table.

• The magnetism of the Earth caused the ball to roll off the table.

• Gravity caused the ball to roll on the slightly unleveled table.

Tags

NGSS.MS-PS2-4

Two objects are dropped from the same heights. Which statement is true about the two objects?

• Once dropped, both objects will bounce when they hit the ground.

• Once dropped, gravity will pull both objects towards the center of the Earth.

• Once dropped, gravity will push both objects away from each other.

• Once dropped, both objects will not be impacted by gravity.

Tags

NGSS.MS-PS2-4

Joy performs an investigation in which she makes a wooden ramp that can be adjusted to different heights. For her first trial, she adjusts the ramp to a particular height marked X in the image and applies a force on a toy car to slide it down the ramp. It takes 1.1 seconds for the car to reach the bottom of the ramp. For her second trial, she adjusts the height of the ramp to one of the four marked positions and pushes the toy car with the same force. It takes 0.9 seconds for the toy car to reach the bottom of the ramp. To which height did Joy adjust the wooden ramp for the second trial?

• height 1

• height 2

• height 3

• height 4

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

Four students (S1, S2, S3, and S4) walk from their school to a football field 500 m away for practice. They start at the same time from the same location. The image shows the distance-time graph for the four students. If the students continue to walk at the same speed, what can be concluded from the graph?

• Students 2 and 3 will reach the field before Student 1.

• Students 3 and 4 will reach the field after Student 2.

• Students 1 and 4 will reach the field before Student 3.

• Students 2 and 3 will reach the field after Student 4.

Tags

NGSS.MS-PS3-1

Sue rode her bike at a constant speed a half mile to school. Halfway to school, she stopped to send a text message to a friend. After finishing her text message, Sue continued to ride her bike at a constant speed the rest of the way to school. Which graph shows Sue's speed during her bike ride to school?

• Graph 1

• Graph 2

• Graph 3

• Graph 4

Tags

NGSS.MS-PS3-1

The graph shows the distance and time for a person jogging on a trail. How much time does the jogger take to cover 3 km?

• 10 minutes

• 15 minutes

• 20 minutes

• 30 minutes

Four balls with different masses are rolled toward a student with the same velocity. On which ball would the student apply the greatest force to stop it?

• 150 g ball

• 170 g ball

• 350 g ball

• 450 g ball

Tags

NGSS.MS-PS2-2

An object is moving, and an unbalanced force is applied in the opposite direction that the object is moving. What happens to the object?

• It speeds up.

• It slows down or stops.

• It changes direction.

• It continues to move at the same speed and direction.

Tags

NGSS.MS-PS2-2

A cart is filled with five boxes, each weighing 2 kg. Harold pushes the cart across the aisle of a storage room. He removes two boxes and then continues to push the cart with the same force across the same surface. How will the motion of the cart change in the two situations?

• The cart will move faster in the second situation than in the first.

• The cart will move slower in the second situation than in the first.

• The cart will move with the same speed in both situations.

• The cart will move only in the first situation but not in the second.

Tags

NGSS.MS-PS2-2

Marie had a box full of books. She applied a force of 30 N to move the box across her room. Marie added more books to the box. Now the box weighs three times as much as it did before. How much force will be required to move the box at the same speed?

• 10 N

• 30 N

• 60 N

• 90 N

Tags

NGSS.MS-PS2-2