Motion and Speed

What is the formula for calculating speed? 

• S=T/D
• S = D/T
• S= D X T

Bob ran the 50 meter dash. It took him 6.3 seconds. What was his average speed in meters/second?

• 7.9 m/s
• 0.1 m/s
• 50 m/s
• 6.3 m/s

A place or object used for comparison to determine if something is in motion is called a...

• Reference Point

• Motion

• Focal Point

• Relative Point

Cars, bicycles, and people can all be objects in motion. What is motion?

• a device used for measuring mass

• a measure of the force of gravity on an object

• a natural force that is produced by a magnetic field

• a change in the position of something over time in comparison to a reference point

Describes a location of an object

• Reference Point

• Motion

• Position

• Distance

Location that you compare other locations with.

• Reference Point

• Motion

• Position

• Distance

Is the change in position over time.

• Reference Point

• Motion

• Position

• Distance

Which measurements do you need to determine the speed of an object?

• time and position

• position and distance

• distance and force

• time and distance

A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

• 10 m/s
• 1000 m/s
• 100 seconds
• 10 seconds

reference point is used to ________________________ ( selected 2 boxes )

• describe location and position

• describe the size of the object

• determine if the position is changing or not

• determine the time