KE1Flashcard(POR)

Front

What is velocity?

Back

Velocity is the rate of change of displacement with respect to time, and it includes both speed and direction.

Front

How do you calculate velocity?

Back

Velocity (v) = Displacement (∆x) / Time (∆t).

Front

What is displacement?

Back

Displacement is the shortest distance from the initial to the final position of an object, along with the direction.

Front

Can an object have zero displacement while in motion?

Back

Yes, an object can move and still have zero displacement if it returns to its starting point.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity with respect to time.

Front

How do you calculate acceleration?

Back

Acceleration (a) = Change in velocity (∆v) / Time taken (∆t).

Front

What is constant acceleration?

Back

Constant acceleration means that the rate of change of velocity is the same over time.

Front

What is the formula for constant acceleration?

Back

The formula is a = ∆v / ∆t.

Front

What does it mean if an object is decelerating?

Back

Deceleration means that the object is slowing down, resulting in a negative acceleration.

Front

If a car speeds up from 0 to 10 m/s in 3 seconds, what is its acceleration?

Back

Acceleration = (10 m/s - 0 m/s) / 3 s = 3.33 m/s².