Force and Motion DOL 4/3

The diagram shows the position of the ball every second for five seconds after it starts rolling. At one of the positions shown, an extra force is applied to the ball as it moves. Which diagram BEST represents the direction of the extra force and the position where the extra force was applied to the ball?

• Position 2

• Position 3

• Position 4

• Position 5

What force causes the wagon to stop?

• The force of gravity which is acting in the same direction as the arrow.

• The force of friction which is acting in the same direction as the arrow.

• The force of gravity which is acting in the opposite direction of the arrow.

• The force of friction which is acting in the opposite direction of the arrow.

Students fill a cart with books. The cart has a handle on each end. Which actions will make moving the cart in one direction easiest for students?

• Student 1 pulls the cart to the left, while Student 2 pulls the cart to the right.

• Student 1 pulls the cart to the left, while Student 2 pushes the cart to the left.

• Student 1 pushes the cart to the right, while Student 2 pushes the cart downward.

• Student 1 pushes the cart to the right, while Student 2 pulls the cart upward.

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 students need to do to slide the box to the northeast?

• 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.

The diagram below 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 below. In which direction does the ball most likely move after the student taps the ball?

• A

• B

• C

• D