If an Object Travels at a Constant Speed in a Circular

question 32

Multiple Choice

If an object travels at a constant speed in a circular path,the acceleration of the object is

• A) larger in magnitude the smaller the radius of the circle.
• B) in the same direction as the velocity of the object.
• C) smaller in magnitude the smaller the radius of the circle.
• D) in the opposite direction of the velocity of the object.
• E) zero.

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Definitions:

Coarse Focus Knob

A control on a microscope that allows the user to make large adjustments in focus, moving the objective lens closer to or further from the specimen.

Lens-cleaning Solution

A specially formulated liquid used for cleaning and disinfecting optical lenses, including those in eyeglasses and cameras.

Brownian Movement

The random motion of particles suspended in a fluid, resulting from their collision with the quick atoms or molecules in the gas or liquid.

Molecules

The smallest particle of a chemical element or compound that can exist independently while retaining all the properties of that element or compound.