DC -- Lab 2

The goal of this lab is to investigate models of static friction and kinetic friction by determining what?

• Newton's 1st law

• the coefficient of normal force

• the coefficient of static friction

• Newton's 2nd law

A body at rest remains at rest, or if in motion, remains in motion at a constant velocity unless acted on by a non-zero net external force.

• Law of Forces

• Newton's 1st Law

• Newton's 2nd Law

• Law of Conservation of Energy

What does the symbol F_s represent in this equation?

• force of static friction

• force of stationary objects

• force of sliding motion

• surface area

In Part 1, which object's mass determines the value of the Normal force in the equation?

• the spring scale

• the string and pulley

• the hanging metal object

• the wood block

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

What question will you answer with your experiment in Part 2 of the lab?

• What is the acceleration of the block?

• What is the density of the block?

• Does surface area matter?

• How can the block move faster?

Tags

NGSS.MS-PS2-2

What variable must not be changed throughout Part 1?

• the wood block

• the length of the string

• the amount of hanging mass

• the temperature of the room

In Part 2, you are given two options for experimentation. What are those options?

• changing the normal force or the friction force

• changing the block to metal or wood

• changing speed or velocity

• changing mass or surface area

How many trials will be done in Part 1?

• 1

• 10

• 5

• 3

What type of diagram is required in your lab handout?

• a labeled diagram

• a technical schematic

• a physics diagram

• a free body diagram

How many High School grades will you receive for this lab assignment?

• 1

• 2

• 3

• 4