Tom is teaching Jenny how to ice skate. Both skaters, who are about the same size, are on the ice and wearing their skates. To help Jenny get started, Tom gives her a gentle push from behind. Which of the following best describes what will happen next? A. Jenny will not move, and Tom will move backward. B. Jenny will move backward, and Tom will move forward. C. Jenny will move forward, and Tom will not move. D. Jenny will move forward, and Tom will move backward.

Which statements correctly describe a system of two people on in-line skates, initially at rest until one person pushes against the other?Multiple select question.The total momentum after the push will be less than zero.The total momentum after the push is zero.The total momentum after the push will be greater than zero.The total momentum before the push is zero.

A hockey player is wearing ice skates and pushes against the wall propelling her backward on the ice. According to Newton's third law of motion, which of the following best compares the forces acting between the wall and the hockey player? A. The forces are equal and applied in the same direction. B. The forces are different sizes and applied in the opposite direction. C. The forces are equal and applied in the opposite direction. D. The forces are equal and applied against gravity.

Anna is pushing her brother on a swing. Anna pushes her brother again in the same direction that he is moving. What will happen to her brother? A. He will swing faster and higher. B. He will start swinging in the opposite direction. C. He will slow down and then speed up. D. He will stop swinging.

Claire is skating across a frozen pond.Which of these would cause Claire's energy of motion to increase? A. changing her direction B. decreasing her speed C. removing her skates D. increasing her speed

Lupe and Lin are ice skating. The following sequence happens as shown in the diagram:Lupe slowly moves toward Lin as Lin stands still.Lupe gently bumps into Lin.Just after Lupe bumps into Lin, they both move in the same direction.Which statement best describes what happens? A. Lupe transfers kinetic energy to Lin. B. Lin loses kinetic energy after Lupe bumps into her. C. Lupe gains kinetic energy after she bumps into Lin. D. Lin transfers kinetic energy to Lupe.