Changes in Motion and Position

The diagram shows a view of a ball from above a table. The ball is rolling across the table. A student lightly taps the rolling ball in the direction shown in the picture. In which direction does the ball most likely move after the student taps the ball? (3.6B)

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Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The picture shows a pulley system that can be used to lift a box. Which of these should a person do to lift the box? (3.6B)

• Tie the end of the rope to the box

• Tie the end of the rope to the ceiling hook

• Pull the end of the rope downward

• Allow the end of the rope to move upward

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-5

Four students stand facing a box. The diagram below shows an overhead view of the box. The numbered circles represent the positions of the students. What do the students need to do to slide the box to the northeast? (3.6B)

• Students 1 and 2 push, and Students 3 and 4 pull.

• Students 1 and 4 push, and Students 2 and 3 pull.

• Students 2 and 3 push, and Students 1 and 4 pull.

• Students 3 and 4 push, and Students 1 and 2 pull.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Two students are playing on a swing set. Student 1 is leaning back and extending her legs as she moves upward. Student 2 is sitting on the swing with his feet on the ground. Which statement describes how position and work are related in this picture? (3.6B)

• Both students are doing work even if only one student is changing position.

• Student 1 is changing position because work is being done on the swing.

• Work done by Earth's gravity prevents Student 2 from changing position.

• Work is being done on both students by the swings because one swing is changing position.

Tags

NGSS.MS-PS2-4

The two pictures show part of an investigation. A magnet, a book, and a paper clip are on a sheet of lined paper. In Picture 1 a student slides a magnet closer to the book. The student holds the book still in both pictures. Which statement about this investigation can be supported by the result shown? (3.6B)

• Work was done on the magnet, the book, and the paper clip.

• Work was done on the magnet and the paper clip only.

• Work was done on the magnet and the book only.

• Work was done on the magnet only.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-5

The picture shows an athlete hitting a ball with a tennis racquet. What is the athlete demonstrating in the picture? (3.6B)

• Doing work by pushing the ball and changing its motion and position

• Changing the position but not the motion of the ball

• Doing work by pulling the racquet and changing the ball's position but not its motion

• Changing the position and motion of the ball without doing any work

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-5