Exit Ticket 3.6B

Some friends build a balloon-rocket car using a balloon, a straw, a water bottle, wheels, and tape. The car is facing a wall. When the straw is released by one of the friends, the air from the balloon comes out. Which statement best describes the motion of the car when the straw is released (as shown in the diagram)?

• The car will move away from the wall in the same direction as the air that is leaving the balloon.

• The car will move toward the wall, because of the force of the air from the straw.

• The car will move fast because the straw gets light as the air is released.

• The car will not move, because the air escapes from the balloon.

Tags

112.7.b.7.B

Alex and Debbie filled a wagon with books. The cart has a handle on each end. Which actions will make moving the cart in one direction easiest for Alex and Debbie?

• Alex pulls the cart to the left while Debbie pulls the cart to the right.

• Alex pulls the cart to the left while Debbie pushes the cart to the left.

• Alex pushes the cart to the right while Debbie pushes the cart downward.

• Alex pushes the cart to the right while Debbie pulls the cart upward.

Tags

112.7.b.7.B

The magnets in the picture both have polls. Describe how Justin would get the magnets to stick together.

• Leave the magnets as they are and they will be attracted to each other.

• The magnets in the picture will repeal each other, because same polls will push on each other.

• These magnets will not stick together, because they are the wrong type of magnets.

• One of the magnets bust be turned around, because opposite polls are attracted to each other.

Tags

112.7.b.7.B

A wagon is pushed and begins to move. As the wagon moves, it slows and comes to a stop. The wagon and the direction it is pushed are shown. What forces cause 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.

Tags

112.7.b.7.B

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

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

• Doing work by 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

3.6B

112.7.b.7.B