1-D Motion Flashcard 2

Front

What is 1-D motion?

Back

1-D motion refers to the movement of an object along a straight line, where only one dimension is considered (e.g., distance, speed, acceleration).

Front

What is free fall?

Back

Free fall is the motion of an object under the influence of gravity alone, with no other forces acting on it.

Front

How do you calculate the distance fallen during free fall?

Back

Distance fallen can be calculated using the formula: d = 0.5 * g * t², where g is the acceleration due to gravity (approximately 9.81 m/s²) and t is the time in seconds.

Front

What is average speed?

Back

Average speed is the total distance traveled divided by the total time taken, expressed as: Average Speed = Total Distance / Total Time.

Front

How do you calculate average speed if a car travels 35 meters in 12 seconds?

Back

Average Speed = 35 m / 12 s = 2.9 m/s.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, expressed as: a = (final velocity - initial velocity) / time.

Front

What is the formula for calculating acceleration?

Back

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

Front

What does displacement refer to?

Back

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

Front

How do you determine displacement when an object moves in opposite directions?

Back

Displacement is calculated by subtracting the distance traveled in the opposite direction from the distance traveled in the initial direction.

Front

If Dr. Suarez walks 2.8 km north and then 5.1 km south, what is her displacement?

Back

Displacement = 5.1 km (south) - 2.8 km (north) = 2.3 km south.