Unit 1 Assessment

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It is measured in meters per second squared (m/s²).

Front

How do you calculate average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken. Formula: Average Speed = Total Distance / Total Time.

Front

What is the formula for gravitational force?

Back

The formula for gravitational force is given by Newton's law of universal gravitation: F = G * (m1 * m2) / r², where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses, and r is the distance between the centers of the two masses.

Front

What is the value of the gravitational constant (G)?

Back

The value of the gravitational constant (G) is approximately 6.67 × 10^-11 N m²/kg².

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 the initial position of an object?

Back

The initial position of an object is the starting point from which it begins its motion, often denoted as 's0' or 'x0'.

Front

What is the significance of launch angle in projectile motion?

Back

The launch angle affects the range and height of a projectile. A 45-degree angle typically provides the maximum range.

Front

How does mass affect gravitational force?

Back

Gravitational force is directly proportional to the product of the masses of two objects. As mass increases, gravitational force increases.

Front

What is the formula for calculating acceleration?

Back

Acceleration can be calculated using the formula: a = (v_f - v_i) / t, where v_f is the final velocity, v_i is the initial velocity, and t is the time taken.

Front

What is the unit of acceleration?

Back

The unit of acceleration is meters per second squared (m/s²).