Phil from Science Max explores the concept of friction through various experiments. He demonstrates how friction affects movement and how it can be increased or decreased. The episode includes building a hover disc to reduce friction and visiting the Ontario Science Center to create a larger version. Phil also conducts a home experiment with a toy boat and ramp to illustrate friction. The episode concludes with a hover disc race using different friction methods.

What is friction?

• A force that occurs when two surfaces rub against each other

• A type of energy

• A chemical reaction

• A form of light

What is the purpose of the balloon in the hover disc experiment?

• To act as a handle

• To add color

• To provide weight

• To create a cushion of air

Why did Phil and Helena decide to use a leaf blower for the larger hover disc?

• Because it provided a more consistent air flow

• Because it was quieter

• Because it was easier to handle

• Because it was cheaper

Tags

NGSS.MS-ETS1-2

What material did Phil and Helena use to cover the bottom of the larger hover disc?

• Paper

• Tarp

• Metal

• Plastic

Why do skis have smooth bottoms?

• To add weight

• To reduce friction

• To increase friction

• To improve durability

What did Phil use to increase friction while climbing the ramp?

• Oil

• Glue

• Velcro

• Sandpaper

What was the main difference between Phil's and Helena's methods of propelling their hover discs in the race?

• Phil used a fan, Helena used a leaf blower

• Phil used a dust mop, Helena used rubber balls

• Phil used a broom, Helena used a mop

• Phil used a stick, Helena used a rope

Why is friction important for car tires?

• To grip the road

• To reduce speed

• To increase fuel efficiency

• To make the car lighter

What did Phil and Helena use to propel their hover discs in the final race?

• Leaf blowers

• Vacuum cleaners

• Fans

• Fire extinguishers

What would happen without friction?

• Objects would stick together

• Objects would move indefinitely

• Objects would generate heat

• Objects would become heavier