Week 12 - Speed (Grade 7 - Science) | Baamboozle - Baamboozle

English 34 Public

Speed and Resistance

Study Slideshow

the distance an object travels per unit of time

Speed

How to calculate speed?

How far an object moves in total is called..................

Distance

The distance and direction of an object moves from a starting position.

Displacement

What are distance and displacement?

Distance=180, Displacement=127

Analyse this graph

The distance (m) STAYS THE SAME as the time(s) increases. • Therefore, the object is AT REST (not moving)

Analyse this graph

The object is MOVING AWAY from the reference point • The object is moving at a CONSTANT SPEED • The object is MOVING QUICKLY

Analyse this graph

The object is MOVING TOWARDS the reference point • The object is moving at a CONSTANT SPEED• The object is MOVING SLOWLY

Analyse this graph

In Part A, the object is moving away at a constant speed • In Part B, the object is at rest • In Part C, it is moving towards at constant speed

a description of both speed and direction is called......

Velocity

What measures HOW MUCH an object’s SPEED CHANGE over a certain time.

Acceleration

What does Positive Acceleration mean?

Object speeds up

What does Negative Acceleration mean?

Object slows down

What does Zero Acceleration mean?

Constant or no speed

what is Formula for acceleration?

Analyse the graph

The distance(m) INCREASING as time(s) passes• The distance gets LARGER AND LARGER with each second• This shows(+) ACCELERATION