Exploring Free Body Diagrams and Vector Components

What is the primary force acting directly downwards on the box?

• Tangential force

• Gravitational force (mg)

• Static friction

• Normal force

Which direction does static friction act on the box?

• Directly upwards

• Upwards to the right

• Downwards

• Upwards to the left

What force acts perpendicular to the surface of the inclined plane?

• Magnetic force

• Static friction

• Gravitational force

• Normal force

Which component of the gravitational force acts parallel to the incline?

• mg cosine theta

• mg sine theta

• mg secant theta

• mg tangent theta

Which component of the gravitational force acts perpendicular into the incline?

• mg sine theta

• mg secant theta

• mg cosine theta

• mg tangent theta

What trigonometric ratio is used to find the force parallel to the incline?

• Sine

• Cosine

• Cotangent

• Tangent

What happens to the mg cosine theta component when theta is zero degrees?

• It equals mg

• It remains unchanged

• It goes to zero

• It doubles

What does the cosine of zero degrees equal?

• 0

• 1

• 0.5

• 2

If theta is zero, what should the force down the incline ideally be?

• Zero

• Twice mg

• Equal to mg

• Half of mg

How is the correctness of the guessed angle theta verified?

• By measuring the angle physically

• Calculating the hypotenuse

• Using a protractor

• Considering the limits as theta approaches zero