{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

1

A student drops a tennis ball. The tennis ball hits the floor and then bounces up again. At what point does the ball have the greatest amount of gravitational potential energy?

before it is dropped

just before it hits the floor

half-way between the drop point and the floor

when it reaches its highest position after the bounce

1

When a rollercoaster goes down a track, most of the gravitational potential energy is transformed into kinetic energy. What happens to the rest?

It transforms into chemical energy.

Nothing happens to it, it just sits there.

It disappears into the system and reappears as static.

It is transformed into heat because of friction with the track.

1

Which types of energy transformation occurs as the clock is used?

chemical potential energy --> electrical energy, elastic potential energy, and light energy

electrical energy --> light energy, sound energy, and thermal energy

light energy --> electrical energy, sound energy, and thermal energy

electrical energy --> light energy, chemical energy, and thermal energy

1

Which energy transformation takes place as the flashlight is used?

electrical energy --> radiant (light), thermal, and chemical energy

electrical energy --> thermal, nuclear, and radiant (light) energy

chemical energy --> electrical, radiant (light), and thermal energy

chemical energy --> thermal, nuclear, and radiant (light) energy

1

At which point is gravitational potential energy highest in this juggling system?

Point A

Point B

Point C

1

If students released the pendulum at Point A, which point in the pendulum cycle would have the most kinetic energy?

Point A

Point B

Point C

1

Students were watching the cycle of the pendulum going back and forth. What type of energy transformation is occurring as the pendulum swings from point C to point B?

Kinetic Energy to Electric energy

Kinetic Energy to Elastic Potential energy

Kinetic Energy to Gravitational Potential Energy

Gravitational Potential Energy to Kinetic energy

1

After playing basketball, two students draw a diagram of the basketball's motion when being thrown toward the basket. In the diagram shown, the ball is at its highest point at position 3.
Which correctly describes the transformations of energy at each of the positions in the diagram?

Position 1: Kinetic energy is decreasing and potential energy is increasing.

Position 2: Kinetic energy is increasing and potential energy is decreasing.

Position 3: Kinetic energy is decreasing and potential energy is decreasing.

Position 4. Kinetic energy is decreasing and potential energy is increasing.

Position 5. Kinetic energy is increasing and potential energy is increasing.

1

Which of these best illustrates the law of conservation of energy?

When a log burns, the matter in the log turns to ash.

Energy is lost as a result of friction between moving parts.

The amount of water stays the same as a puddle of water evaporates.

When a log burns, chemical energy contained in the log is transformed into heat and light energy.

1

A child is playing with a battery-operated toy car. The child closes the switch that operates the car.
Which best describes the energy transformation that allows the car to move forward?

Chemical to electrical to mechanical

Electrical to chemical to thermal

Mechanical to chemical to sound

Thermal to electrical to chemical

CFU for PS3.2 Energy Transformations

CFU for PS3.2 Energy Transformations

A student drops a tennis ball. The tennis ball hits the floor and then bounces up again. At what point does the ball have the greatest amount of gravitational potential energy?

When a rollercoaster goes down a track, most of the gravitational potential energy is transformed into kinetic energy. What happens to the rest?

Which types of energy transformation occurs as the clock is used?

Which energy transformation takes place as the flashlight is used?

At which point is gravitational potential energy highest in this juggling system?

If students released the pendulum at Point A, which point in the pendulum cycle would have the most kinetic energy?

Students were watching the cycle of the pendulum going back and forth. What type of energy transformation is occurring as the pendulum swings from point C to point B?

After playing basketball, two students draw a diagram of the basketball's motion when being thrown toward the basket. In the diagram shown, the ball is at its highest point at position 3.
Which correctly describes the transformations of energy at each of the positions in the diagram?

Which of these best illustrates the law of conservation of energy?

A child is playing with a battery-operated toy car. The child closes the switch that operates the car.
Which best describes the energy transformation that allows the car to move forward?

A student drops a tennis ball. The tennis ball hits the floor and then bounces up again. At what point does the ball have the greatest amount of gravitational potential energy?

When a rollercoaster goes down a track, most of the gravitational potential energy is transformed into kinetic energy. What happens to the rest?

Which types of energy transformation occurs as the clock is used?

Which energy transformation takes place as the flashlight is used?

At which point is gravitational potential energy highest in this juggling system?

If students released the pendulum at Point A, which point in the pendulum cycle would have the most kinetic energy?

Students were watching the cycle of the pendulum going back and forth. What type of energy transformation is occurring as the pendulum swings from point C to point B?

After playing basketball, two students draw a diagram of the basketball's motion when being thrown toward the basket. In the diagram shown, the ball is at its highest point at position 3.
Which correctly describes the transformations of energy at each of the positions in the diagram?

Which of these best illustrates the law of conservation of energy?

A child is playing with a battery-operated toy car. The child closes the switch that operates the car.
Which best describes the energy transformation that allows the car to move forward?

CFU for PS3.2 Energy Transformations

CFU for PS3.2 Energy Transformations

A student drops a tennis ball. The tennis ball hits the floor and then bounces up again. At what point does the ball have the greatest amount of gravitational potential energy?

When a rollercoaster goes down a track, most of the gravitational potential energy is transformed into kinetic energy. What happens to the rest?

Which types of energy transformation occurs as the clock is used?

Which energy transformation takes place as the flashlight is used?

At which point is gravitational potential energy highest in this juggling system?

If students released the pendulum at Point A, which point in the pendulum cycle would have the most kinetic energy?

Students were watching the cycle of the pendulum going back and forth. What type of energy transformation is occurring as the pendulum swings from point C to point B?

After playing basketball, two students draw a diagram of the basketball's motion when being thrown toward the basket. In the diagram shown, the ball is at its highest point at position 3.Which correctly describes the transformations of energy at each of the positions in the diagram?

Which of these best illustrates the law of conservation of energy?

A child is playing with a battery-operated toy car. The child closes the switch that operates the car.Which best describes the energy transformation that allows the car to move forward?

A student drops a tennis ball. The tennis ball hits the floor and then bounces up again. At what point does the ball have the greatest amount of gravitational potential energy?

When a rollercoaster goes down a track, most of the gravitational potential energy is transformed into kinetic energy. What happens to the rest?

Which types of energy transformation occurs as the clock is used?

Which energy transformation takes place as the flashlight is used?

At which point is gravitational potential energy highest in this juggling system?

If students released the pendulum at Point A, which point in the pendulum cycle would have the most kinetic energy?

Students were watching the cycle of the pendulum going back and forth. What type of energy transformation is occurring as the pendulum swings from point C to point B?

After playing basketball, two students draw a diagram of the basketball's motion when being thrown toward the basket. In the diagram shown, the ball is at its highest point at position 3.Which correctly describes the transformations of energy at each of the positions in the diagram?

Which of these best illustrates the law of conservation of energy?

A child is playing with a battery-operated toy car. The child closes the switch that operates the car.Which best describes the energy transformation that allows the car to move forward?

After playing basketball, two students draw a diagram of the basketball's motion when being thrown toward the basket. In the diagram shown, the ball is at its highest point at position 3.
Which correctly describes the transformations of energy at each of the positions in the diagram?

A child is playing with a battery-operated toy car. The child closes the switch that operates the car.
Which best describes the energy transformation that allows the car to move forward?

After playing basketball, two students draw a diagram of the basketball's motion when being thrown toward the basket. In the diagram shown, the ball is at its highest point at position 3.
Which correctly describes the transformations of energy at each of the positions in the diagram?

A child is playing with a battery-operated toy car. The child closes the switch that operates the car.
Which best describes the energy transformation that allows the car to move forward?