Unit 3 Review

Match the following Kinematics Equations units

• time

• m/s

• distance

• m/s^2

• time

• sec

• velocity

• m

• acceleration

• hour

Noah and Evelyn are racing in a 100m dash. If Noah starts at the 0m mark and Evelyn starts 10m ahead, what is the equation to calculate Noah's displacement after he crosses the finish line?

• displacement = final position - initial position

• displacement = final position / initial position

• displacement = final position * initial position

• displacement = final position + initial position

Henry, Ethan, and Ava are racing their toy cars. If they want to calculate the average velocity of their cars, which equation should they use?

• Average velocity = (change in position) * (change in time)

• Average velocity = (change in position) + (change in time)

• Average velocity = (change in position) - (change in time)

• Average velocity = (change in position) / (change in time)

William, Ava, and David are in a spaceship exploring the cosmos! They need to calculate the spaceship's acceleration to navigate through an asteroid belt. Can you help them figure out the correct equation for acceleration?

• acceleration = distance / time

• acceleration = change in velocity / time taken

• acceleration = force / mass

• acceleration = velocity / time

Tags

NGSS.HS-PS2-1

Harper, Grace, and Zoe are planning a race. Harper wonders how long it will take to finish if they know the distance and their speed. Can you help them figure out the equation to calculate time?

• Time = Speed / Distance

• Time = Distance / Speed

• Time = Distance * Speed

• Time = Distance + Speed

Abigail, Emma, and Nora are in a race. If we know the average velocity at which they are running, how can we calculate the distance each of them covered?

• displacement = average velocity + time

• displacement = average velocity * time

• displacement = average velocity / time

• displacement = average velocity - time

Imagine Charlotte and William are in a thrilling race against time! Charlotte's car is zooming to the right at a speed of 29m/s when suddenly, she decides to overtake William's car. She slams on the accelerator and with a heart-pounding burst of speed, she passes the 110m mark in a flash, reaching a new speed of 34m/s. Zoe, who's watching the race, is curious about the acceleration of Charlotte's car during this intense maneuver. If you were Zoe, which equation would you use to calculate the acceleration?

• vf=vi+at

• x=vit+1/2at²

• vf²=vi²+2aX

• x=((vf+vi)/2)t

Tags

NGSS.HS-PS2-1

Which variable is associated with "How fast?"

• Time

• Velocity

• Acceleration

• Displacement

Which variable is associated with "How long does it take?"

• Time

• Velocity

• Acceleration

• Displacement

Which variable is associated with "How far?"

• Time

• Velocity

• Acceleration

• Displacement