Physics Sem 1 Review part1

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity over time. It can be calculated using the formula: a = (final velocity - initial velocity) / time.

Front

What does a negative acceleration indicate?

Back

Negative acceleration, also known as deceleration, indicates that an object is slowing down.

Front

How do you calculate the components of a vector given its magnitude and angle?

Back

Use trigonometric functions: Rx = magnitude * cos(angle) and Ry = magnitude * sin(angle).

Front

What is the acceleration due to gravity on Earth?

Back

The acceleration due to gravity on Earth is approximately 9.81 m/s², often referred to as free-fall acceleration.

Front

What does the slope of a velocity-time graph represent?

Back

The slope of a velocity-time graph represents the object's acceleration.

Front

What is the formula for calculating acceleration?

Back

The formula for calculating acceleration is a = (v_f - v_i) / t, where v_f is final velocity, v_i is initial velocity, and t is time.

Front

Define free-fall acceleration.

Back

Free-fall acceleration is the acceleration of an object due to gravity alone, without any other forces acting on it.

Front

What is the difference between average speed and constant speed?

Back

Average speed is the total distance traveled divided by the total time taken, while constant speed means the speed does not change over time.

Front

What is displacement?

Back

Displacement is the change in position of an object, measured as a straight line from the initial position to the final position.

Front

What is the relationship between velocity and acceleration?

Back

Velocity is the speed of an object in a given direction, while acceleration is the rate at which that velocity changes.