# Chapter 5 Physical Science

12 Questions | Total Attempts: 45  Settings  For school test

• 1.
• A.

Transfer of energy that occurs when a force makes an object move

• B.

Ability to cause change

• C.

A device that makes doing work easier

• D.

Exerting a force with your muscles.

• E.

Amount of work done in one second

• 2.
A device that makes doing work easier by increasing the force that can applied to an object or by increasing the distance over which a force can be applied by changing the direction of an applied force.
• A.

Energy

• B.

Mechanical

• C.

Lever

• D.

Machine

• E.

Pulley

• 3.
The force you exert is at ____ _____to the direction of the object you are moving.
• 4.
When you do work on an object you ____ its energy.
• 5.
Ability to cause change
• A.

Work

• B.

Power

• C.

Energy

• D.

Pulley

• E.

Lever

• 6.
Amount of work done in one second
• A.

Work

• B.

Energy

• C.

Power

• D.

Pulley

• E.

Machine

• 7.
Machine
• A.

A measure of how much of the work put into a machine is changed into useful output work by a machine

• B.

Ability to cause change

• C.

A device that makes doing work easier by increasing the distance over which a force can applied by change the direction of an applied force.

• D.

Exerting a force with your muscles

• E.

A device that makes doing work easier by increasing the force that can be applied to an object

• 8.
Machines make work easier by:(3 answers)
• A.

Decreasing force

• B.

Increasing force

• C.

Changing the direction of an applied force

• D.

Decreasing the distance in which a force can be applied

• E.

Increasing the distance in which a force can be applied

• 9.
T or F?  Conserving machine - energy is never conserved.  Answer with T or F
• 10.
Mechanical advantage - the ratio of output force to ____ ______.
• 11.
Mechanical advantage of a machine without friction.
• A.

Efficiency

• B.

Work

• C.

Energy

• D.

Ideal machine

• E.

Machine

• 12.
A measure of how much of the work put into a machine is changed into useful output work by a machine.
• A.

Efficiency

• B.

Work

• C.

Energy

• D.

Input force

• E.

Ideal machine

Related Topics Back to top