1D Kinematics and Free Fall

Front

What is the original velocity of an object that starts from rest?

Back

0 m/s

Front

If an object has an acceleration of 0 m/s², what can we conclude about its velocity?

Back

The object is not changing velocity.

Front

How do you calculate acceleration when an object accelerates uniformly from rest?

Back

Use the formula: a = (v_f - v_i) / t, where v_f is final velocity, v_i is initial velocity, 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 on Earth?

Back

Approximately 9.81 m/s².

Front

What is the formula for calculating the distance traveled by an object under constant acceleration?

Back

d = v_i * t + 0.5 * a * t², where d is distance, v_i is initial velocity, a is acceleration, and t is time.

Front

What happens to the velocity of an object if it is accelerating?

Back

The velocity of the object increases over time.

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

If a car accelerates uniformly at 3.2 m/s², what is its speed after traveling 40 m?

Back

16 m/s.

Front

What does it mean for an object to not accelerate?

Back

It means the object's velocity is constant.