Forces and motion revision part 1

What is speed?

• Speed is how quickly and object travels

• Speed is the how fast an object moves

• Speed is the distance an object covers in a certain amount of time.

• Speed is the weight of an object.

Choose a common units of distance.

• Metres

• Hours

• Seconds

• Metres per second

State a common units of time

• Metres

• Kilometres

• Seconds

• Metres per second

State a common unit of speed

• Hours per mile

• sec/min

• seconds per metre

• metres per second

120 seconds is ​ (a)   minutes

• 2
• 1.2
• 60
• 7200

4000 metres is ​ (a)   kilometres

• 40
• 400
• 0.004
• 4

A lorry travels 150 km in 3 h. What’s its speed?

• 50 m/s

• 50 km/s

• 50 km/h

• 50 h/km