POGIL: Effect Of Mass On Kinetic Energy (7th)

Look closely at the table. Which variable is being controlled (kept the same) in each game of table tennis?

• Type of Sports Ball

• Speed (m/sec)

• Mass (grams)

• Kinetic Energy (Joules)

Answer explanation

Be careful when reading the data table: a constant is a variable that the researcher keeps the same through each trial of the experiment.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

An independent variable is the variable that can be changed (manipulated) by the researcher for each trial of the experiment. Which of the following numerical choices can be changed by the researcher during each trial?

• Type of Sports Ball

• Volume (cm³)

• Mass (grams)

• Kinetic Energy (Joules)

Answer explanation

Be careful: the question asked for a numerical value from the table that could be changed for each trial.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

Look carefully at the graph for this question. The graph shows the Kinetic Energy of bike riders moving at different speeds. Each rider has a mass of 60 Kg. Estimate the amount of Kinetic Energy (in Joules) for a rider moving at 22 m/s.

Answer explanation

In order to answer this question, you need to interpolate the data. If you don't know how to interpolate, see me for extra help.

Tags

NGSS.MS-PS3-1

Use the data you have recorded in your POGIL packet to help answer this question:

Listed below are several different types of Sports Balls. If each ball is hit at 20 m/s, reorder the Sports Balls in order from Smallest Kinetic Energy to Greatest Kinetic Energy.

• Solid Rubber Ball

• Hard Foam Ball

• Ping Pong Ball

• Golf Ball

• Super Ball

Answer explanation

Be careful when answering this question: You will need to use the data from both the tables shown here. Both these tables are directly from your POGIL.

Tags

NGSS.MS-PS3-1

The graph shown on the left represents the graph that you should have created during your group work for this POGIL. The graph shows the Kinetic Energy of different sports balls with different masses. Estimate the Kinetic Energy (in Joules) for a ball with the mass of 50 grams.

Answer explanation

In order to answer this question, you need to interpolate the data. If you don't know how to interpolate, see me for extra help.

Tags

NGSS.MS-PS3-1

Look closely at the model. Which variable(s) are not being controlled (kept the same) in the ride?

• Type of Riding

• Total Mass of bike + rider system

• Speed of bike (m/s)

Answer explanation

When answering this question, be sure to recognize which variables are being kept the same and which variables are changing each trial.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Reorder the following types of riding from greatest amount of Kinetic Energy to least amount of Kinetic Energy.

• Sprinting

• Casual

• Commuting

• Track Racing

• Waiting

Answer explanation

Be careful when reading the chart. Make sure that you are looking in the correct columns to help answer this question.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Look closely at the model to the left. Which factor is being kept constant (controlled or kept the same)?

• Type of Riding

• Total Mass of bike + rider system (kilograms)

• Speed (m/sec)

• Kinetic Energy (Joules)

Answer explanation

In an experiment, a variable is considered a constant when it is controlled (or kept the same) for each trial of the experiment.

Be sure that your choice was the factor that did not change each time.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

The graph represents the data you should have graphed during the POGIL activity. Based on the graph, estimate the Kinetic Energy of a rider moving at 20 m/s.

Answer explanation

In order to answer this question, you need to interpolate the data. If you don't know how to interpolate, see me for extra help.

Tags

NGSS.MS-PS3-1

Use the provided data tables to answer the following question:

Which variable has a greater impact on an object's kinetic energy?

• the speed of an object

• the mass of an object

• both speed and mass have the same effect on an object's kinetic energy

• neither speed or mass have an effect on an object's kinetic energy

Answer explanation

Be careful when looking at the data from the two tables. In order to answer the question, take a look at which factor (speed or mass) has the greatest impact on Kinetic Energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4