Thermal & Kinetic Engery

This week in class we completed the "Flow Energy" experiment to determine "Where does the energy come from that warms up a drink?" We had three cups of water: one hot, one room temperature, and one ice cold. We had thermometers in each cup to take the temperature every 5 minutes. We observed the data below in the data chart. What are the controls?

Select ALL that apply!

• 150 ml of water in each cup

• same temperature of water

• Same type of cup

• Measure of temperature every five minutes

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which object has higher thermal energy?

• cup a

• cup b

• they are both the same

• neither

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Measurements inside a sealed container show that the pressure exerted by a gas increases as the thermal energy increases . Which of the following best explains this pressure increase?

• The gas molecules move faster and strike the container walls more frequently.

• The gas molecules move slower, sticking to the container and each other due to thermal dynamics

• The gas molecules move slower and strike the wall less frequently.

• The gas molecules move at a constant speed, sticking to the container and each other due to thermal dynamics

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

A student touches a metal sink with her finger and notices that her finger feels cold. Which of the following statements explains this observation?

• The student's finger was originally at the same temperature as the sink.

• The student's finger was the cause of the sink making being cold and then made the sink feel hot

• The cold from the sink transfer to the finger making the finger feel cold

Tim and Kate design and conduct and experiment using cold water, room temperature water, and hot water to determine “where does the energy come from that warms up a drink.?" What are some controlled variables they should consider when conducting this experiment? pick all that apply.

• amount of water

• temperature of the water

• Type of cup

Tags

NGSS.MS-PS3-4

A cup of tea with a temperature of 80 degrees Celsius is placed on a table in a 20 degree Celsius room. What happens to the thermal energy and the molecular motion of the tea when it is left on the table?

• the thermal energy increases and the molecules move more slowly

• The thermal energy decreases and molecules move more slowly

• The thermal energy sticks to the side and slows down emitting heat

• The thermal energy decreases and then moves rapidly from side to side in a 2-D motion

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which container allowed the MOST transfer of thermal energy from the water to the environment?

• glass

• wood

• paper

• plastic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-3

when particles ___, this means they have__. When ___, the particles with more kinetic energy transfer some of their particles with __.

• particles collide, less kinetic energy, more kinetic energy. move less

• move more, more kinetic energy, particles collide, less kinetic energy

• move more, particles collide, less kinetic energy, move less

• move less, more kinetic energy, move more, less kinetic enrgy

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

NGSS.MS-PS3-1

Tiffany participated in the Collision Game. At the end of the game the teacher asked her to complete this analogy: Coins hitting are like__because: One coin will____to the other but they are different because in__the first particles is moving too. It is not stopped and there is not friction from the table slowing the particles down.

• like particles colliding, transfer energy, real life

• real life, transfer energy, like particles colliding

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS2-1

A student is running an experiment to determine if the surface area of ice affects the time for the ice to melt. He designed an experiment and tested, then observed the effects. He placed the same mass of ice into two separate buckets filled with 250 ml of water. He then placed small ice cubes into bucket A and one solid cube of ice into bucket B, keeping it the same mass. He placed a thermometer into each bucket to measure the temperature. He concluded based on his data that the one solid cube of ice in bucket B had a higher temperature than the same mass of ice in Bucket A but Bucket A had several smaller ice cubes.

Match the particles into the boxes to show how temperature affects the motion of particles in the ice bath experiment model. Particles may be used more than once.

• 1=b, 2=a, 3=c

• 1=c, 2=b, 3=a

• 1=c, 2=a, 3=b

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5