Electricity Unit

A 20 kg bike accelerates at 10 m/s².  what was the force?

• 25 Newtons
• 20 Newtons
• 200 Newtons
• 10 Newtons

Electricity is...

• A form of energy created by the movement of electrons through a conductor

• A form of energy created by the movement of electrons through a insulator

• A form of energy created by the movement of protons through a conductor

• A form of energy created by the movement of negative atoms through a conductor

Which of the following would increase the amount of potential energy on an object?

• increasing its mass

• increasing its distance above the surface

• taking it to a planet with a larger "g"

• all of these

What Newtons law does this picture represent

• Newtons 2nd law 
• Law of gravity 
• Newtons 1st law
• Newtons 5th law

Which one needs a greater net force to move, a kilogram of feathers or a kilogram of iron? 

• feathers 
• iron
• same
• depends on their friction

Type of energy that comes from the movement of the air.

• Solar Energy

• Geothermal Energy

• Hydroelectric Energy

• Wind Energy

An electric circuit through which current can flow in an uninterrupted path.

• closed circuit

• volts

• conductor

• insulator

A rocket pushes burning gases DOWN which causes the rocket to launch UP. Which law is this?

• Law 1

• Law 2

• Law 3

According to Newton's second law, if you increase the force applied to an object :

• it accelerates more
• it doesn't move
• you get more inertia
• it decelerates

It is much more difficult to move a dresser full of clothes than an empty dresser.

• Law 1

• Law 2

• Law 3