Physical Science Unit 1

What is the effect of increasing the distance on the work done, assuming the force remains constant?

• Work decreases

• Work remains the same

• Work increases

• Work becomes zero

What should you remember to make word problems easier?

• "Need-to-Know" formulas

• "Need-to-Know" definitions

• "Need-to-Know" units

• "Need-to-Know" examples

Which of the following best describes the concept of work in physics?

• Work is the energy transferred to an object via force causing displacement.

• Work is the energy stored in an object.

• Work is the speed at which an object moves.

• Work is the potential energy of an object.

Tags

NGSS.MS-PS3-5

What is the first hint to make word problems easier?

• Remember the "Need-to-Know" formulas

• Identify the variable being asked to solve

• Plug in the remaining variables to the formula

• Keep track of the units

What does the 'F' in the work formula W = F x D stand for?

• Force

• Friction

• Frequency

• Farad

What is the formula for calculating work?

• Work = Force x Distance

• Work = Force / Distance

• Work = Distance / Force

• Work = Force + Distance

Which simple machine consists of a wheel with a rope or chain?

• Pulley

• Screw

• Wedge

• Inclined plane

What does IMA stand for in the context of levers?

• Ideal Mechanical Advantage

• Input Mechanical Advantage

• Initial Mechanical Advantage

• Internal Mechanical Advantage

Which class of lever has the effort between the fulcrum and the load?

• Third-class lever

• First-class lever

• Second-class lever

• Fourth-class lever

What is an example of a first-class lever?

• A seesaw

• A wheelbarrow

• A fishing rod

• A pair of tweezers