Pre Test for Physics

A girl moves on her bike 47 m [E] in 24 seconds. What is her velocity?

Tags

NGSS.MS-PS3-1

The symbol v₁ is.....

• acceleration due to velocity

• initial velocity

• gravitational velocity

• final velocity

The unit for acceleration is....

• m/s

• s²

• m²/s

• m/s²

speed is not a vector because it doesn't have ....

• a value

• a square

• a direction

• a velocity

Δt means...

• total time

• negative time

• start time

• change of time

The acceleration due to gravity on Earth is a constant. Its value is...

• 12.1 m/s²

• 9.8 m/s²

• 8.6 m/s²

• 5.9 m/s²

Which equation would you use if the acceleration is unknown?

• v₂ = v₁ + aΔt

• Δd = 1/2(v₂ + v₁)Δt

• Δd = v₁Δt + 1/2aΔt²

• v₂² = v₁² + 2aΔd

Tags

NGSS.HS-PS2-1

Which equation would you use if the time is unknown?

• v₂² = v₁² + 2aΔd

• Δd = 1/2(v₂ + v₁)Δt

• Δd = v₁Δt + 1/2aΔt²

• v₂ = v₁ + aΔt

Which one is an example of speed?

• Usain Bolt ran 100 meters in 9.8 seconds

• The plane flew 100 km [SW] in 1 hour

A horse starts a race at rest and accelerates [N] at 2.0 m/s² . What is the horse's velocity after 6 seconds?

Tags

NGSS.HS-PS2-1