RADT 151 HW#1

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Which system uses the force of gravity to define mass? British system System International Both use the force of gravity

British system

All of the following are derived quantities except: Velocity Momentum Force Mass

Mass

Fundamental quantities include all of the following except: Mass Velocity Length Time

Velocity

Which of the following is a unit of measure for a fundamental quantity? Newton kilogram m/s kg-m/s

kilogram

Which of the following is the appropriate unit of measure for velocity? N C/kg m/s k-m/s

m/s

What is the power used if 3,000 J is consumed in 3 seconds? 10 W 100 W 1,000 W

1,000 W

What is the velocity of an object if it travels 50 meters in 5 seconds? 25 m/s 250 m/s 10 m/s

10 m/s

What is the force needed to move a 110-kg patient at a rate of 1 meter per second? 110 N 11 N 1,100 N

110 N

What is the power consumed if 500 J of work is done in 4 seconds? 2,000 W 125 W 50 W

125 W

What is the work done if a force of 1,000 N is applied over a distance of 20 meters? 20,000 J 2,000 J 1,000 J

20,000 J

What is the force necessary to move a 100-kg object at a rate of 3 meters/second? 33 N 300 N 30 N

300 N

What is the momentum of a 200-kg portable if it travels 50 meters in 2.5 seconds? 10,000 kg-m/s 12,500 kg-m/s 4,000 kg-m/s

4,000 kg-m/s

What is the velocity of a bullet if it covers 12,000 meters in 3 seconds? 400 m/s 4,000 m/s 40,000 m/s

4,000 m/s

What is the work done if a force of 300 N is applied over a distance of 15 meters? 4,500 J 3,000 J 1,500 J

4,500 J

Which of the following best describes the System International (SI)? A system that uses the foot, pound, and minute A system that uses the meter, pound, and minute A system that uses the foot, kilogram, and second A system that uses the meter, kilogram, and second

A system that uses the meter, kilogram, and second

Mass changes with gravitational field. True False

False

A body's resistance to a change in its state of motion is: Inertia Velocity Momentum Acceleration

Inertia

Which of the following is solely a property of mass? Time Inertia Velocity Energy

Inertia

Anything that occupies space and has shape or form is: Mass Matter Energy Inertia

Matter

Which of the following is expressed in kg-m/s? Velocity Acceleration Force Momentum

Momentum

If 7,000 represented the force applied to an object, which of the following units of measure should be used? N C/kg m/s k-m/s

N

Which of the following is a unit of measure for a derived quantity? Meter Kilogram Second Newton

Newton

Which of the following is a state of energy? Chemical Electrical Potential Thermal

Potential

A unit of measure is a value agreed upon by a society to give meaning to a quantity. True False

True

Mass, distance, and time are needed to determine what derived quantity? Velocity Force Acceleration Work

Work


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