Kinematics Problems

Front

What is Kinematics?

Back

Kinematics is the branch of physics that describes the motion of objects without considering the forces that cause the motion.

Front

Define initial velocity.

Back

Initial velocity is the velocity of an object at the start of a time interval.

Front

What is acceleration?

Back

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

Front

How do you calculate distance traveled under constant acceleration?

Back

Distance (d) can be calculated using the formula: d = v_i * t + 0.5 * a * t^2, where v_i is the initial velocity, a is acceleration, and t is time.

Front

What is the formula for calculating final velocity?

Back

Final velocity (v_f) can be calculated using the formula: v_f = v_i + a * t, where v_i is the initial velocity, a is acceleration, and t is time.

Front

What does it mean for an object to be in free fall?

Back

An object in free fall is only under the influence of gravity, with no other forces acting on it.

Front

What is the acceleration due to gravity?

Back

The acceleration due to gravity on Earth is approximately -9.8 m/s².

Front

How do you determine the time taken to reach a certain velocity?

Back

Time (t) can be calculated using the formula: t = (v_f - v_i) / a, where v_f is the final velocity, v_i is the initial velocity, and a is acceleration.

Front

What is the significance of negative velocity?

Back

Negative velocity indicates that an object is moving in the opposite direction to the defined positive direction.

Front

How do you calculate the distance traveled when decelerating?

Back

Use the same distance formula: d = v_i * t + 0.5 * a * t^2, where a is negative for deceleration.