speed

• Physics
• Secondary Education

Fast or slow

1. Move the toy car 'A 'to 50cm and find the time taken and move the toy car 'B' to 50cm and find the time taken.

2. Move the toy car 'A' for 1 minute and find the distance covered and the toy car B for 1 minute and find the distance covered.

4. How can you find that which car is fast?

 the car move move

5. Find the relationship between distance, time and how fast the object moves.

Speed

• A change in distance over time
  

Acceleration

• A change in speed over time 
  

Distance 

Time

Speed

cm

km

m

mm

s

h

m/s

km/s

cm/s

mm/s

What is the correct way to calculate speed

1. S=d + t
2. S=d - t
3. S=d / t
4. S=d x t

What is the correct way to calculate time

1. t = d + S
2. t = d/S
3. t = S - d
4. t = d - S