Phy Sci, Tuesday Bell Ringer, 4.17.18

What is speed?

• direction 
• the rate at which something is moving
• speeding up
• slowing down

What is the difference between speed and velocity?

• Velocity has rate
• Velocity is measured in Newtons
• Velocity has direction (N, S, E, or W)
• Speed has acceleration

Which is the best definition for force?

• movement
• effecting speed
• unbalanced
• Push or a pull

Which force creates movement?

• An unbalanced force
• A balanced force

Tags

NGSS.MS-PS2-2

Which definition best fits the term inertia?

• a force
• when something falls forward
• resistance to change in state of motion
• when an object wants to keep moving

Tags

NGSS.HS-PS2-1

The law that states that if no force acts on an object at rest, it will remain at rest is _______.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

Which item has more inertia?

• elephant
• dog

What is Newton's First Law known as? The Law of

• Friction
• Mass
• Inertia
• Gravity

What kind(s) of objects have inertia?

• all objects with mass
• only objects at rest
• only objects in motion
• only objects whose motion is being changed

Tags

NGSS.HS-PS2-1

What is Newton's First Law

• F=ma
• Every action has an equal and opposite reaction
• An object at rest stays at rest, an object in motion stays in motion. 
• Friction