pHet Simulation: Energy Skate Park Basics

Which variable are you not allowed to change in this simulation? 

• friction
• mass of skater
• shape of the track
• surface of the track 

Which would NOT change the potential energy of the skater? 

• putting the skater higher up on the track
• increasing the friction
• making the track steeper and further from the ground
• moving the starting point of the skater 

Tags

NGSS.MS-PS3-2

What is the relationship between PE and KE? 

• inverse
• direct
• unrelated
• inverse and direct

Tags

NGSS.MS-PS3-5

When you increase mass you ___________ the kinetic energy. 

• decrease
• increase
• do not change 

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

When the skater is high on the track the _________ is high but the _____ is lower. 

• speed, friction
• friction, kinetic energy
• kinetic energy, potential energy
• potential energy, kinetic energy 

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

When friction is high the motion of the skater is: 

• increased
• decreased
• not affected 

Tags

NGSS.MS-PS2-2

Which statement is true about a skater on a U shaped track? 

• speed remains constant from one end to the other
• speed starts high at the top and reduces as the skater reaches the bottom of the track
• speed increases as they move down the track and then decreases as they move up the other side 
• speed is zero the entire time 

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Based on your experiments in the skate park,

• friction is a force that opposes motion.

• friction is a force that increases motion.

• friction is a force that does not impact motion.

• friction is not a force.

Set up the U shaped ramp with the bar graphs showing and experiment with the amount of friction. Friction...

• converts mechanical kinetic energy into thermal kinetic energy.

• destroys total energy.

• increases total energy.

• does not impact energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Play in the playground until you can make the skater do a loop-di-loop. Which of the following statements is not true?

• Increasing friction makes it easier to do a loop-di-loop.

• The top of the loop must be lower that the skaters starting height.

• The skater must have enough potential energy at the start to make it through the loop.

• Lower friction makes is easier to do a loop-di-loop.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5