AP Physics midterm review - Units 1,2,3,5

Front

What is tension in a string when a frictionless system is accelerated by an applied force?

Back

Tension (F_T) is the force transmitted through the string, which can be calculated based on the applied force and the mass of the objects in the system.

Front

What is the relationship between distance traveled and time for an object uniformly accelerated from rest?

Back

The distance traveled versus time graph is a parabola, while the speed versus time graph is a straight line with a positive slope.

Front

What is the difference between speed and velocity in uniform circular motion?

Back

Speed is constant, but velocity is not constant because the direction of the object is continuously changing.

Front

What happens to the acceleration of a ball at the highest point of its parabolic path?

Back

The acceleration is directed downward due to gravity, regardless of the ball's position along the path.

Front

What are the directions of velocity and acceleration for a ball at the highest point of a vertical circle?

Back

At the highest point, the velocity is horizontal, and the acceleration is directed downward.

Front

Define uniform circular motion.

Back

Uniform circular motion is the motion of an object traveling at a constant speed along a circular path.

Front

What is the formula for calculating acceleration in a frictionless system?

Back

Acceleration (a) can be calculated using Newton's second law: a = F/m, where F is the net force and m is the mass.

Front

Explain the concept of gravitational acceleration.

Back

Gravitational acceleration (g) is the acceleration of an object due to the force of gravity, approximately 9.81 m/s² near the Earth's surface.

Front

What is the significance of the area under a speed versus time graph?

Back

The area under the speed versus time graph represents the distance traveled by the object.

Front

How does air resistance affect the motion of a projectile?

Back

Air resistance opposes the motion of a projectile, reducing its range and altering its trajectory.