Units 6 & 7: Forms of Energy

As a rollercoaster goes uphill, what is happening to its mechanical energy? Use the picture for reference.

• mechanical energy increases

• mechanical energy doesn't change

• mechanical energy decreases

• mechanical energy stops

Tags

NGSS.MS-PS3-5

Speed can be determined by which of the following?

• 
  mechanical energy and distance

• pushes and time

• 
  time and mechanical energy

• distance and time

How does increasing the mechanical energy by winding up a toy more affect the speed?

• It makes it go faster because there is more energy

• 
  It makes it go faster because there is less energy

• It makes it go slower because there is more energy

•  It makes it go slower.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Students have wind-up toy cars, a metric ruler and timing devices in order to create an investigation.  Which of the following is a testable question students could answer in an investigation using these materials?

• Why does decreasing the mechanical energy increase gravity? 

• How does increasing the number of times the toy car is wound up increase the speed?

• What kind of toy car is the overall best kind to buy? 

• What kind of scientist can best explain how cars work?

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

NGSS.MS-PS2-2

Students conducted an investigation in which they compared how fast a skateboarder crossed a finish line with a different number of pushes.

Which number of pushes resulted in the fastest speed? 

• 4

• 2

• 3

• 1

Tags

NGSS.MS-PS3-1

All of the following are examples of mechanical energy EXCEPT:

• kicking a soccer ball

• sitting in chair

• riding a bike

• riding a horse

Tags

NGSS.MS-PS3-5

Which two tools below would be most useful in investigating how the speed of an object is related to mechanical energy?

• Spring scale and hot plate

• Graduated cylinder and beaker

• Magnet and thermometer

• Meter Stick and timing device

Tags

NGSS.MS-PS3-1

A form of energy that we can see.

• sound

• light

• mechanical

• thermal

A form of energy we can hear.

• sound

• light

• mechanical

• thermal

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A combination of moving energy and stored energy.

• sound

• light

• mechanical

• thermal

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4