# force

18 08, 2017

## What is mass? Physics

By |2018-05-31T11:49:29-07:00August 18th, 2017|Physics|1 Comment

This truck has a lot of mass. Mass is a measure of the number of atoms in an object combined with the density of those atoms. Usually people measure mass in kilograms. You can tell [...]

17 08, 2017

## Acceleration – simple physics

By |2018-05-31T11:49:28-07:00August 17th, 2017|Physics|Comments Off on Acceleration – simple physics

Tegla Loroupe, Kenyan runner Acceleration is how much your speed changes in a certain amount of time. Picture yourself standing in front of your house. When you stand still, your acceleration [...]

17 08, 2017

## Newton’s Second Law of Motion – Physics

By |2018-05-31T11:49:28-07:00August 17th, 2017|Physics|Comments Off on Newton’s Second Law of Motion – Physics

How hard will the ball hit the catcher's glove? It depends how big the ball is. how fast the pitcher throws it, and how far away the catcher is. Like [...]

17 08, 2017

## Newton’s Second Law of Motion project

By |2018-05-31T11:49:15-07:00August 17th, 2017|History|Comments Off on Newton’s Second Law of Motion project

Gravity is an important cause of acceleration Newton's Second Law of Motion tells us that force equals mass times acceleration. You can try this out for yourself. Here's a website with [...]

17 08, 2017

## Acceleration – Physics definitions

By |2018-05-31T11:49:28-07:00August 17th, 2017|Physics|2 Comments

Pedaling will make her accelerate. So will going downhill. Acceleration is a way to measure how fast something is speeding up. Suppose you are riding your bike. You start out [...]

17 08, 2017

## What is work? Physics definitions

By |2018-05-31T11:49:15-07:00August 17th, 2017|Physics|Comments Off on What is work? Physics definitions

Ancient Egyptian cattle plowing (Louvre Museum, Paris) You might think you know what work is, like homework, or having to pick up your room, right? But to scientists, work has [...]

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