Unit 1 Lesson 1 Vocabulary Science

Front

motion

Back

a change in an object's position

Front

speed

Back

how fast an object's position changes over time at any given moment

Front

velocity

Back

the speed and direction of an object

Front

acceleration

Back

a change in velocity over time

Front

position

Back

an object's location

Front

force

Back

a push or pull

Front

inertia

Back

the tendency of an object in motion to stay in motion or of an object at rest to stay at rest

Front

friction

Back

a force between surfaces that slow objects or stop them from moving