1 / 25

250 likes | 441 Views

Newton’s 2 nd Law. In this lesson, we will be focusing on Newton’s 2nd Law of Motion. This law is all about the connections between force , mass , and acceleration . Let’s find out more from the characters in Eureka. 3 2nd Law/Speed. 2 X. 1 X. 1 X. 2 X. The red ball has twice

Download Presentation
## Newton’s 2 nd Law

**An Image/Link below is provided (as is) to download presentation**
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.
Content is provided to you AS IS for your information and personal use only.
Download presentation by click this link.
While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

**Newton’s**2nd Law**In this lesson, we will be focusing on Newton’s 2nd Law of**Motion. This law is all about the connections between force, mass, and acceleration. Let’s find out more from the characters in Eureka.**2 X**1 X 1 X 2 X The red ball has twice the mass of the red ball So.... if the mass is doubled, what happens to the force? ?**3 X**6 X 1 X 20 X 20 X 1 X 3 X 6 X FORCE is proportional to MASS Let’s try some other masses… ? ? ?**1 X**1 X 1 X 2 X What if both balls have the same mass, but the speeds are different. If the speed is doubled, what happens to the force? ? 20 km/hr 40 km/hr**1 X**1 X 1 X 1 X 1 X 3 X 2 X 4 X 1 X 1 X So... FORCE is proportional to CHANGE OF SPEED.... ? 20 km/hr 20 km/hr 40 km/hr ? ? 60 km/hr 80 km/hr**The amount of force needed depends onmass AND change of**speed Let’s sum up what we know so far… If we double mass, we ______ force If we double change of speed we ______ force double double Ready for a brain check?**1. If you increase mass, what happens to force?**A. increases B. decreases C. stays the same 2. If you increase speed, what happens to force? A. increases B. decreases C. stays the same**Let’s look at this idea of change of speed a little**more… 4 Acceleration 1**It takes time to go from**zero to the top speed, so... it’s really the “rate of change of speed” we’re talking about. The word that means “rate of change of speed” is acceleration…**This means we can write**Newton’s 2nd Law as “force varies with mass and acceleration” The key idea of this Law can also be turned into an equation: Force = mass x acceleration (F=ma)**FMA Live!**Fma Live 2nd Law**Force = mass x acceleration**F = ma In an equation, changing one variable means another variable must also change. If... What happens to… F = m a F? F = m a a?**Let’s try some more…**If... What happens to… 1. F = m a a? 2. F = m a a? 3. F = m a F? 4. F = m a a?**Big Soccer Ball**Big soccer ball**Teacher in Wagon**Teacher in Wagon**Airgun**Airgun**Mini Bike**Mini_bike**Slingshot**Slingshot**Plane-Car-Motorcycle Race**Plane Car Motorcycle Race**Extras....**More videos showing Newton’s 2nd Law**NFL Football**Science 360 - NFL Football**Terry Tate Football Smash**Terry Tate Football Smash**Newton on the ISS**Newton on ISS

More Related