Basic Motion #1 speed velocity acceleration 11.6.23

What is the difference between speed and velocity?

• Speed is a vector quantity that refers to how fast an object is moving, while velocity is a scalar quantity that refers to the rate at which an object changes its position.

• Speed and velocity are the same thing.

• Speed is a measure of distance traveled, while velocity is a measure of time taken.

• Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that refers to the rate at which an object changes its position.

If an object travels 100 meters in 20 seconds, what is its average speed?

• 5 meters per second

• 50 meters per second

• 2 meters per second

• 10 meters per second

What is the formula to calculate speed?

• distance - time

• distance + time

• distance/time

• distance x time

What is the SI unit of speed?

• cm/s

• km/h

• ft/min

• m/s

What is the formula to calculate velocity?

• Velocity = Distance / Time

• Velocity = Acceleration x Time

• Velocity = Mass x Acceleration

• Velocity = Change in position / Change in time

If an object is moving with a constant velocity, what can you say about its acceleration?

• zero

• decreasing

• increasing

• constant

What is deceleration?

• The rate at which an object slows down or decreases its speed.

• The rate at which an object changes direction.

• The rate at which an object maintains its speed.

• The rate at which an object speeds up or increases its speed.

Is deceleration a positive or negative acceleration?

• negative

• positive

• neutral

• zero

A car travels 300 km in 6 hours. What is the average speed of the car (in km/hr)?

• 0.02 km/hr
• 1,800 km/hr
• 50 km/hr
• 50 km

If a student ran 300 m in 30 seconds, what was her average speed?

• 0.10 m/s
• 10 m/s
• 270 m/s
• 100 m/s