Physics-Semester 1 Final Review

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented by the formula p = mv, where p is momentum, m is mass, and v is velocity.

Front

How do you calculate momentum?

Back

Momentum (p) is calculated using the formula p = mv, where m is the mass of the object and v is its velocity.

Front

What is the principle of conservation of momentum?

Back

The principle states that in a closed system, the total momentum before an event is equal to the total momentum after the event, provided no external forces act on it.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time, represented by 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 are the units of acceleration?

Back

The units of acceleration are meters per second squared (m/s²).

Front

What is the variable for distance in physics?

Back

The variable for distance is commonly represented by 'd'.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is free fall?

Back

Free fall is the motion of an object under the influence of gravitational force only, with no air resistance.

Front

What is the effect of air resistance on falling objects?

Back

Air resistance opposes the motion of falling objects, causing them to fall slower than they would in a vacuum.

Front

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

Back

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