AP Physics 1 Unit 2 Review

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It is a vector quantity, meaning it has both magnitude and direction. In physics, it is often measured in meters per second squared (m/s²).

Front

What is net force?

Back

Net force is the vector sum of all the forces acting on an object. It determines the object's acceleration according to Newton's second law of motion (F=ma).

Front

What does Newton's 3rd law of motion state?

Back

Newton's 3rd law of motion states that for every action, there is an equal and opposite reaction. This means that forces always occur in pairs.

Front

How do you calculate the y component of a vector?

Back

To find the y component of a vector, use the formula: y = F * sin(θ), where F is the magnitude of the vector and θ is the angle with respect to the horizontal.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion. Unbalanced forces result in a net force that causes an object to accelerate.

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) can be calculated using the formula: a = (final velocity - initial velocity) / time.

Front

What is gravitational acceleration?

Back

Gravitational acceleration (g) is the acceleration of an object due to the force of gravity. On Earth, it is approximately 9.81 m/s², often rounded to 10 m/s² for simplicity.

Front

What is tension in a string or rope?

Back

Tension is the force transmitted through a string, rope, or cable when it is pulled tight by forces acting from opposite ends.

Front

What is the significance of the angle in vector components?

Back

The angle in vector components determines how much of the vector's magnitude is directed along the x and y axes, affecting the overall motion of the object.

Front

What is the relationship between mass and acceleration in Newton's second law?

Back

According to Newton's second law (F=ma), the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.