1.5 | Acceleration

The metric system units for velocity are

• m/s

• m/s²

• m²/s

• m²/s²

The metric system units for acceleration are

• m/s

• m/s²

• m²/s

• m²/s²

When an object is traveling at a constant velocity:

• the acceleration is 0.

• the acceleration is in the same direction as its velocity.

• the acceleration is in the opposite direction of its velocity.

• the acceleration is perpendicular to the velocity.

When an object is speeding up:

• the acceleration is 0.

• the acceleration is in the same direction as its velocity.

• the acceleration is in the opposite direction of its velocity.

• the acceleration is perpendicular to the velocity.

When an object is slowing down:

• the acceleration is 0.

• the acceleration is in the same direction as its velocity.

• the acceleration is in the opposite direction of its velocity.

• the acceleration is perpendicular to the velocity.

Tags

NGSS.HS-PS2-1

Acceleration is the change in _______ over time.

• Velocity

• Displacement

• Speed

• Distance

Tags

NGSS.HS-PS2-1

Velocity is the change in _______ over time.

• Velocity

• Displacement

• Speed

• Distance

When calculating acceleration, you subtract which quantities in which order?

• Final velocity minus initial velocity

  (v_{f -} v_i)

• Initial velocity minus final velocity

  (v_i - v_f)

• Final displacement minus initial displacement

  (d_f - d_i)

• Initial displacement minus final displacement

  (d_i - d_f)