One Dimensional Kinematics

Front

What is the formula to calculate distance when an object is decelerating?

Back

Distance = (Initial Velocity + Final Velocity) / 2 * Time

Front

What is the speed of an object at rest?

Back

0.0 m/s

Front

Define acceleration in terms of velocity.

Back

Acceleration is the rate of change of velocity.

Front

What is a vector quantity?

Back

A vector is a quantity with magnitude and direction.

Front

How do you calculate acceleration using initial velocity, final velocity, and displacement?

Back

Use the formula: a = (v^2 - u^2) / (2 * s), where v = final velocity, u = initial velocity, s = displacement.

Front

What is the unit of acceleration in the SI system?

Back

m/s²

Front

What does a negative acceleration indicate?

Back

Negative acceleration indicates deceleration or a decrease in speed.

Front

If an object travels 150 m in 10 s, what is its average speed?

Back

Average speed = Total distance / Total time = 150 m / 10 s = 15 m/s.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What is the significance of the slope of a distance-time graph?

Back

The slope of a distance-time graph represents the speed of the object.