Unit 1 Phy. Science Review

What two measurements are necessary for calculating speed?

• Mass and time
• Temperature and mass
• Mass and distance
• Distance and time

What is the speed of an object that travels 60 meters in 4 seconds?

• 240 m/s
• 15 m/s
• 0.067 m/s
• 15 mph

A measurement of how fast an object is moving

• Velocity
• Speed
• Vector
• Acceleration

Can be measured in seconds (s)

• Distance
• Time
• Speed
• Acceleration

What is the speed of an object that travels 20 meters in 4 seconds?

• 80 m/s
• 0.2 m/s
• 5 m/s
• 24 m/s

Total distance divided by total time, for an object shows:

• acceleration

• the size of one's toupee

• absolute speed

• average speed

An old lady rolls down a hill at 3 meters/second. The hill is 36 meters long. How many seconds does it take the old lady to reach the bottom of the hill?

• 39 seconds

• 12 seconds

• 15 seconds

• 33 seconds

You walk 10 meters to math class in 20 seconds. Your average speed is

• 2 m/s
• 0.5 m/s
• 200 m/s
• 5 m/s

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

Jose wandered 4 km at 2 km/hr. How long did Jose wander?

• 2 hours

• 8 hours

• 0.5 hours

• 2 km