Unit 3: Energy Review

Jose performed an experiment on motion using a marble and created a graph to plot the data. 

   What units should Jose use on her graph to show the constant speed of the marble over a 

   certain distance?

• grams and kilograms

• meters and seconds

• minutes and hours

• meters and centimeters

Tags

NGSS.MS-PS3-1

What does this graph represent?

• constant speed

• acceleration

• stationary (not moving)

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NGSS.MS-PS3-1

What does this graph represent?

• constant speed

• acceleration

• stationary (not moving)

According to the graph how far does the person travel in the first 5 seconds?

• 2 m

• 0 m

• 5 m

• 10 m

Tags

NGSS.MS-PS3-1

A student walks 2.0 km in a time of 30 minutes. The student then stop for 15 minutes to eat a snack then travels 1.0 km in 15 minutes.

Which graph shows the journey described?

• 
• 
• 
• 

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NGSS.MS-PS3-1

How long did Charlie stop for a rest?

• 5 seconds

• 2 seconds

• 3 seconds

• 3.5 seconds

At which segment was the object moving at the greatest speed?

• 0-15 seconds

• 15-25 seconds

• 25-30 seconds

• 35-55 seconds

Tags

NGSS.MS-PS3-1

What is the mechanical energy of an object?

• the sum of all types of kinetic energy

• 1. the sum of all types of potential energy 

• 1. the sum of all kinetic energy and all potential energy 

• 1. the difference between the kinetic energy and the potential energy 

Energy can occur in many forms.  Which of the following terms best describes kinetic energy?

• motion

• length

• volume

• no motion

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

A high-speed collision between two vehicles causes more damage than a low-speed collision. 

       What is the reason for this?

• 1. Vehicles traveling at a high speed have no potential energy.

• 1. Vehicles traveling at a low speed have no potential energy.

• 1. Vehicles traveling at a high speed have more kinetic energy than vehicles traveling at lower speeds.

• 1. Vehicles traveling at a low speed have more kinetic energy than vehicles traveling at higher speeds.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5