# Work And Energy Period 1

28 Questions | Total Attempts: 50  Settings  Multiple Choice and Fill in questions

Related Topics
• 1.
A boy pushes on a parked car with a force of 200 N. The car does not move.  How much work does the boy do on the car?
• A.

0 N

• B.

200 N

• C.

Can't be determined

• D.

200 J

• 2.
What are the units of work?
• A.

N-m

• B.

J

• C.

• D.

Kg-m2/s2

• 3.
Which of the following processes requires the most work?
• A.

A 10 kg ball is rolled across the floor at a constant speed for 10 m

• B.

A person holds a 1kg weight still with outstretched arms

• C.

A person lifts a 1 kg weight 1 m off the floor

• D.

A 10 kg weight rests on a table

• 4.
What are the units of power
• A.

Watts

• B.

Joules per second

• C.

Horsepower

• D.

All of these choices

• 5.
Which of the following is NOT a simple machine
• A.

A lever

• B.

A pair of scissors

• C.

A wheel and axle

• D.

A screw

• 6.
Which of the following is not in the inclined plane family
• A.

A wedge

• B.

A ramp

• C.

A screw

• D.

A wheel and axle

• 7.
Which of the following is a compound machine?
• A.

A wheel and axle

• B.

A pair pf pliers

• C.

A pulley

• D.

A ramp

• 8.
Which of the following statements about work and energy is NOT true?
• A.

When work is done, energy is transferred or transformed

• B.

Energy may be defined as the ability to do work

• C.

Work and energy are always equal

• D.

Work and energy have the same units

• 9.
Gravitation potential energy depends on the.....
• A.

Height of the object

• B.

Acceleration due to gravity

• C.

The mass of the object

• D.

All of these choices

• 10.
The kind of energy associated with the atomic bomb is.....
• A.

Chemical energy

• B.

Light energy

• C.

Kinetic energy

• D.

Mechanical energy

• 11.
The primary source of the sun's energy is....
• A.

Chemical energy

• B.

Nuclear fusion

• C.

Nuclear fission

• D.

Potential energy

• 12.
A pendulum is swinging back and forth and has a kinetic energy of 400 J at a particular point in it's path.  Which of the following statements is not true?
• A.

Both kinetic and potential energy are decreasing

• B.

The minimum kinetic energy is zero

• C.

The potential energy increases when the kinetic energy decreases

• D.

When the potential energy is zero, the potential energy will be 400 J greater

• 13.
The law of conservation of energy states that.......
• A.

Energy can not change form

• B.

It is impossible to make a perpetual motion machine

• C.

The energy of a system can disappear

• D.

Energy can be neither created or destroyed

• 14.
_____________________ is a quantity that measures the effects of a force acting over a distance
• 15.
______________________ is a quantity that measures the rate at which work is done
• 16.
_________________________ is a quantity that measures how much a machine multiplies force or distance
• 17.
Power is calculated by dividing work by _______________________
• 18.
Horsepower is the common unit of power in rating engines.   However, the official SI unit of power is the _________________
• 19.
A __________________________ is defined as a machine made up of more than one simple machine
• 20.
A(n) ____________________ is an inclined plane wrapped around a cylinder
• 21.
_______________________ can be defined as the ability to do work
• 22.
___________________ is the stored energy resulting from the relative positions of objects in a system
• 23.
_____________________ is the energy of a moving object due to its motion
• 24.
The sum of all the kinetic and potential energy of a large scale objects in a system is called ______________________
• 25.
Energy that lies at the level of atoms and does not effect motion on a large scale is sometimes called ________________ energy