Question

using the examples below, determine whether each one is describing acceleration, velocity, or speed. select the correct answer in each row.
acceleration velocity speed
a car slowing down as it comes closer to a red light.
a drone flying overhead at 14 km/hr.
a sports car going from 0 to 60 km/hr in 4 seconds.
my family traveling 3 km/hour east towards the end of their street.
a child riding their bike north at 4 km/hr.

Explanation:

• A car slowing down is a change in speed (a form of acceleration as it's a change in velocity).
• Drone's 14 km/hr is just a magnitude of motion, so speed.
• Sports car's change in speed in a time - interval is acceleration.
• Family moving at 3 km/hr east has magnitude and direction, so velocity.
• Child riding bike north at 4 km/hr has magnitude and direction, so velocity.

Answer:

• A car slowing down as it comes closer to a red light: Acceleration
• A drone flying overhead at 14 km/hr: Speed
• A sports car going from 0 to 60 km/hr in 4 seconds: Acceleration
• My family traveling 3 km/hour east towards the end of their street: Velocity
• A child riding their bike north at 4 km/hr: Velocity