PE and KE Check for Understanding

The ball in the diagram is held at the start position. When released, it rolls down the ramp, travels up the other side to position 1, then rolls back down the ramp. What is NOT true?

• At the start, the ball has PE

• At the start, the ball has KE

• When the ball rolls down the ramp, PE is converted to KE

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS3-2

A player throws a tennis ball up in the air. At what point does the ball have the most potential energy?

• When the ball is at the highest position

• When it hits the ground

• Just as it leaves the hand

Tags

NGSS.MS-PS3-2

NGSS.MS-PS2-4

Two students are running in a race. Student 1 has more kinetic energy than student 2. Who will win the race?

• Student 1

• Student 2

• More information is needed to determine the answer

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

A car and a wildebeest are both moving 40mph. Which has more kinetic energy?

• wildebeest

• car

• more information is needed (like mass) to answer the question

Tags

NGSS.MS-PS3-5

Which has more KINETIC energy? A sloth hanging still from a tree or an ant walking on the ground?

• sloth

• ant

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

Which has more GRAVITATIONAL POTENTIAL energy? A giant 20 kg sloth hanging still from a tree or a 0.025 kg ant walking on the ground?

• sloth

• ant

Tags

NGSS.MS-PS2-4

If the ball has a maximum potential energy (PE) of 10J at the highest point of the swing, how much Kinetic Energy (KE) does it have at the lowest point?

• 10J

• 0J

• 5J

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-4

If position 2 is HALFWAY between position 1 and 3, how much PE and KE does the ball in the pendulum have?

• PE = 3J

  KE = 3J

• PE = 0J

  KE = 3J

• PE = 0J

  KE = 0J

• PE = 6J

  KE = 6J

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-2

Match the following units!

• J (Joule)

• weight

• kg (kilogram)

• mass

• m (meter)

• velocity

• m/s north

• Energy

• N (newton)

• height