S1 Test review_complete_24

Front

What is the formula to calculate the time taken for an object to cover a distance under uniform acceleration?

Back

t = √(2d/a), where d is distance and a is acceleration.

Front

What is the acceleration due to gravity (g) on Earth?

Back

Approximately 9.8 m/s².

Front

What is the initial velocity (v_i) of an object that is dropped from rest?

Back

0 m/s.

Front

What does momentum depend on?

Back

Momentum depends on mass and velocity.

Front

What is the formula for calculating momentum (p)?

Back

p = m * v, where m is mass and v is velocity.

Front

How do you calculate the height of an object in free fall after a certain time?

Back

h = 0.5 * g * t².

Front

What is the significance of uniform acceleration in motion?

Back

Uniform acceleration means the object's velocity changes at a constant rate.

Front

What is the relationship between distance, initial velocity, time, and acceleration in uniformly accelerated motion?

Back

d = v_i * t + 0.5 * a * t².

Front

How can you estimate the maximum height reached by a projectile?

Back

Use the formula h = v_i² / (2g), where v_i is the initial velocity.

Front

What is the effect of air resistance on falling objects?

Back

Air resistance opposes the motion, reducing the acceleration and final velocity.