What is Physics?

What is Physics?

by Terea Jackson

​Unit 1: Lesson 1a: Kinematics

​We will learn about

• ​Gravity

• ​Motion

• ​Constant Speed

​Vocabulary

• ​​Kinematics

• ​Dynamics

• ​Mechanics

• ​Translational motion

• ​Rational Motion

• ​Displacement

• ​Speed

• ​Velocity

• ​Vectors

• ​Magnitude

• ​​​Scalars

• Acceleration

• ​Axis of Rotation

• ​Angular Displacement

• Angu​lar Velocity

• Revolutions per minute​

• ​Angular Acceleration

​Kinematics

​The car moved northeast at the rate 45 kilometers per hour.

​

​The car moved because the wheels turning forced the car to move

​Kinematics describes the motion of objects, what causes the motion is Dynamics. These are two branches of the overall study of Mechanics.

​Motion from one place to another is Translational Motion. An airplane uses translational motion.

​Motion that spins around in one place is Rotational Motion. A windmill uses rotational motion.

Fill in the Blanks

Which branch of mechanics describes the cause of motion?

Multiple Choice

What term describes the motion of an object from one place to another?

• Rotational Motion

• Translational Motion

Take a break

​Displacement

​Displacement is when we describe an objects direction and distance.

How quickly an object is moving is the speed . Velocity is the speed and direction of the object.

Fill in the Blanks

What vocabulary word is used to describe both speed and direction of motion?

​Calculating Distance

​When working in physics sometimes we have to solve using a formula.

​

​Objective:

​We will be learning to find the distance, speed and time it takes for an object to move.

​Distance Formula- Finding Distance

​The distance formula is:

​Distance = Speed x Time

​If you drive 100 km/hr for 6 hours how far will you go?

​

• ​First, how fast are we driving? 

• ​Second, how long will we be driving?

• ​Third, what operation will we use ( multiply or divide)  

Multiple Choice

Sam drives 85km per hour for 3 hours. How far does Sam travel?

• 88 km

• 255 km

​​Distance Formula- Finding Time

​The distance formula is:

​Distance = Speed x Time

​If you paddle a canoe at 3km/ hr and you want to go 12km, how long will it take 

​

• ​First, how fast are we paddling? 

• ​

• ​Second, how far do we want to go?

• ​

• ​Third, what operation will we use ( multiply or divide)  

Multiple Choice

How long does it take a car travel 30km/ hr to travel a road 180m long?

• 60 hours

• 6 hours 

​

Distance Formula- Finding Speed

​If you shoot an arrow at a target 180 meters away and it takes 1.2 seconds, what is the speed of the arrow?

​

• ​First, how far are we shooting the arrow? 

• ​Second, how long did it take to reach the target?

• ​Third, what operation will we use ( multiply or divide)  

​The distance formula is:

​Distance = Speed x Time

Multiple Choice

Pete drives 150 meters in 15 seconds. Assuming he does not speed

up or slow down, what is his speed in meters per second?

• 10

• 5