NAUTICAL SCIENCE 5.1 MOTION, FORCE AND AERODYNAMICS- Test

What does Newton’s Second Law of Motion state?

• 1. The acceleration of a body is directly proportional to the force acting upon it

• 1. A body in motion tends to remain in motion in a straight line unless acted on by outside forces

• 1. An object at rest remains at rest, or if in motion, remains at a constant velocity unless acted on by a net external force

• 1. For every action, there is an equal but opposite reaction

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NGSS.MS-PS2-2

1. How is Newton’s Second law of motion mathematically expressed?

• 1. F=ma

• 1. M L2 T−2

• 1. W=Fs

• 1. f = µN

1. What is the change in velocity per unit of time?

• Mass

• Gravity

• Friction

• Acceleration

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NGSS.MS-PS2-2

1. What is the quantity of material contained in a body? 

• Mass

• Gravity

• Acceleration

• Friction

1. What method is used by scientists in their investigations?

• Experiment

• 1. Survey methodology

• 1. Case Study

• 1. Scientific method

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NGSS.MS-PS2-2

What occurs when a force acts through a distance?

• 1. Acceleration

• Friction

• Work

• Velocity

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NGSS.MS-PS3-5

1. ___________ are often used to express the speed of missiles and other high-speed aircraft.

• Knots

• Mass

• Miles

• Mach Numbers

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NGSS.MS-PS3-1

Gravity is known as…

• 1. One force that all moving earthbound objects are subject to

• 1. The downward force applied against a body

• 1. The total energy in any isolated system 

• 1. Power or energy exerted against a body in a given direction

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NGSS.MS-PS2-2

Friction is described as…

• 1. One force that all moving earthbound objects are subject to

• 1. The downward force applied against a body

• 1. The total energy in any isolated system 

• 1. Power or energy exerted against a body in a given direction

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NGSS.MS-PS1-4

What is the English unit for measuring work?

• Mass

• Horsepower

• Force

• Newtons