PHYS 1110 Exam 1 Study Guide

This exam asesses course standards 8–19.  If you can do the tasks described below, you will satisfy the standards on the exam.

Standard 8

For a projectile in ballistic motion, recognize the formulas for the components in the vertical and horizontal directions of its position, velocity, and acceleration.

Recognize how the vertical and horizontal components of position, velocity, and acceleration of a projectile change over time.

Identify the factors and conditions that affect the position, velocity, and acceleration of a ballistic projectile.

Standard 9

Given the position and velocity of a ballistic projectile at one time, find its position and velocity at any other time.

Find the time at which a component of position or velocity has a particular value.

Given the time for a projectile to reach a particular height, find the vertical component of its initial velocity.

Carry out a sequence of these tasks to characterize a trajectory.

Standard 10

Explain what a force is.

Add forces together.

Define the net force applied to an object.

Standard 11

Recognize when a body's velocity is constant.

Identify the net force acting on a body whose velocity is constant.

Determine the acceleration of a body upon which the net force is zero.

Standard 12

Given two of the following quantities, find the third:

• mass of a body
• its acceleration
• the net force applied to it

Standard 13

For any force acting on a body:

• Identify the body exerting the force.
• Identify the magnitude of its Newton's third law reaction force.
• Identify the direction of its Newton's third law reaction force.
• Identify the body on which its Newton's third law reaction force acts.
• Identify the body exerting its Newton's third law reaction force.

Standard 14

Given a description of a physical scenario, construct a free body diagram for all objects involved.  Draw all forces as vector arrows in the correct directions, with their relative magnitudes properly indicated by the lengths of the arrows.

Standard 15

Given two of the following quantities, find the third:

• an object's weight
• its mass
• the local gravitational acceleration.

Deduce the direction of a tension force exerted by a chain, rope, string, or cable.

From the direction and one Cartesian component of a force, find the magnitude of the force and its other Cartesian component(s).

Identify the constraint imposed on a body by the normal force from a surface in contact with it.

Determine the magnitude of the normal force between a body and a surface it contacts.

Standard 16

Identify the direction of a friction force in a situation.

Identify the formula to calculate the force of kinetic friction.

Given any two of the following quantities, find the third:

• the normal force between a surface and a body
• the coefficient of kinetic friction between the surface and the body
• the force of kinetic friction between the surface and the body.

Identify the formula to calculate the maximum value of the force of static friction.

Determine a force of static friction that is less than the maximum possible value.

Standard 17

Given incomplete information about the forces acting on a static body, deduce the unknown quantities.

Standard 18

Deduce the components of a body's weight parallel and perpendicular to an inclined surface that it contacts.

Determine the normal force between a body and an inclined surface that it contacts.

Determine the net force acting on a body on an inclined surface.

Standard 19

Deduce the motion of two bodies with different forces acting on them, but whose motions are constrained to be synchronized (e.g., the bodies are connected by contact or a cable).