Higher ODU unit review

Which equation represents the relationship between final velocity (v), initial velocity (u), acceleration (a), and time (t)?

• v = u + at

• s = ut + 1/2 at^2

• v^2 = u^2 + 2as

• s = (u + v)t / 2

What does the equation s = ut + 1/2 at^2 calculate in motion equations?

• Final velocity

• Distance

• Acceleration

• Time

Which of the following is necessary for calculating distance, displacement, speed, velocity, and acceleration from graphs?

• Graphs showing variable acceleration in multiple dimensions

• Graphs restricted to constant acceleration in one dimension, inclusive of change of direction

• Graphs for objects at rest

• Graphs for objects moving with variable speed in a straight line

What type of motion-time graphs are included in the interpretation and drawing for objects moving with constant acceleration in a straight line?

• Graphs for objects moving in a circular path

• Graphs for objects moving with variable acceleration

• Graphs for bouncing objects and objects thrown vertically upwards

• Graphs for objects moving at a constant speed

Which formula represents Newton's second law of motion?

• W = mg

• F = ma

• E_k = 0.5mv^2

• P = E/t

What is the formula for gravitational potential energy?

• E_p = mgh

• E_k = 0.5mv^2

• W = Fd

• P = E/t

What does the equation P = \(\frac{E}{t}\) define in physics?

• Force

• Work

• Power

• Momentum

Which of the following is the correct expression for kinetic energy?

• E_p = mgh

• E_k = 0.5mv^2

• W = Fd

• P = E/t

What is the purpose of using free body diagrams in physics?

• To solve problems involving balanced and unbalanced forces

• To illustrate the conservation of energy

• To represent vector addition

• To calculate the power of an object

What is the formula for momentum as given in the learning material?

• p = mv

• F = ma

• E_k = 1/2 mv^2

• F_t = mv - mu