Final Exam Study Guide
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Final Exam Study Guide. The distance traveled by an object divided by the time it takes to travel that distance is called. Average Speed. In order to determine speed, you must know. Distance & Time. What is the speed of an object at rest?. Zero Km/hr.

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Final Exam Study Guide

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Final exam study guide

Final Exam Study Guide


The distance traveled by an object divided by the time it takes to travel that distance is called

The distance traveled by an object divided by the time it takes to travel that distance is called

  • Average Speed


In order to determine speed you must know

In order to determine speed, you must know

Distance & Time


Final exam study guide

  • What is the speed of an object at rest?

Zero Km/hr


The difference between speed and velocity is that velocity includes

The difference between speed and velocity is that velocity includes

direction


Final exam study guide

An airplane is flying at 635 km per hour at an altitude of 35 000 m. It is currently over Kansas and is approximately 16 minutes ahead of its scheduled arrival time. What is its velocity?

No direction = 0


Final exam study guide

  • Acceleration is defined as the change in velocity divided by

Time


Final exam study guide

The SI unit for acceleration is

Meter per second2

m/s2


On a velocity time graph a line with a negative slope indicates that the object is

On a velocity-time graph, a line with a negative slope indicates that the object is

Slowing Down


When the velocity of an object changes it is acted upon by a n

When the velocity of an object changes, it is acted upon by a(n)

Force


A tug of war that results in one team pulling the other across the line is an example of

A tug-of-war that results in one team pulling the other across the line is an example of


Friction is defined as

Friction is defined as

A force that opposes motion by acting in the opposite direction of motion


Final exam study guide

A force is continuously applied to an object, causing it to accelerate. After a period of time, however, the object stops accelerating. What conclusion can be drawn?

  • experiencing friction


Object is in motion when

object is in motion when

  • moves in a point of reference


If the slope of a line on a distance time graph is 1 the speed of the object being plotted is

If the slope of a line on a distance-time graph is 1, the speed of the object being plotted is

increasing


Final exam study guide

  • How can the friction on a slide be reduced?

Add water


Final exam study guide

A car is parked on a hill. In order to keep the car from rolling downhill, how great must the static friction acting on the car be?

friction force must be equal to mg

Mass*gravity


Final exam study guide

Weight is best described as

Mass*gravity


Final exam study guide

  • When objects are moved further apart from each other, the force of gravity

Decreases


Final exam study guide

The greatest gravitational force would occur between the Moon & Earth, or two marbles.

Moon & Earth


Final exam study guide

The law that states that every object maintains constant velocity unless acted on by an unbalanced force is

First


The law that states that for every action force there is an equal and opposite reaction force is

The law that states that for every action force there is an equal and opposite reaction force is

Third


Final exam study guide

The law that states that the unbalanced force acting on an object equals the object’s mass times its acceleration is


Final exam study guide

The SI unit of force, named for the scientist who described the relationship between motion and force, is called the

Newton


Which of the following units is used to measure acceleration in free fall

Which of the following units is used to measure acceleration in free fall?

m/s2


Final exam study guide

Earth pulls on the moon and holds the moon in its orbit. The moon pulls on Earth with an equal and opposite force. This is an example of

  • Newton’s 3rd Law


What is the unbalanced force that slows down a ball rolling across the floor

What is the unbalanced force that slows down a ball rolling across the floor?

Friction


Final exam study guide

  • 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?

W = F*d 0


What are the units of work

What are the units of work?

J or N*m or Kg*m2/s2


Final exam study guide

  • Which of the following processes requires the most work?

  • A 10 kg weight rests on a table.

  • A person holds a 1 kg weight still with outstretched arms.

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

  • d.A 10 kg ball is rolled across the floor at a constant speed for a distance of 10 m.


Final exam study guide

  • A man pushes a crate along a factory floor by exerting a force of 70 N. If the crate moves a distance of 4.0 m, how much work does the man perform?

280J


Final exam study guide

What are the units of power?

Watts


Final exam study guide

A weightlifter presses a 200 N weight 1 m over his head in 2 seconds. What is the power of the weightlifter?

100W


Work can energy energy can do

Work can _______ energy. Energy can do _________.

make

work


What is the gravitational potential energy of a 70 kg box that is 4 0 m above the ground

What is the gravitational potential energy of a 70 kg box that is 4.0 m above the ground?


Gravitational potential energy depends on the

Gravitational potential energy depends on the

Height


Gravitational potential energy depends on the1

Gravitational potential energy depends on the

height gravity and mass


A medicine ball has a mass of 10 kg and is thrown with a speed of 2 m s what is its kinetic energy

A medicine ball has a mass of 10 kg and is thrown with a speed of 2 m/s. What is its kinetic energy?

20J


The kind of energy associated with atomic bonds is

The kind of energy associated with atomic bonds is

Nuclear energy


Final exam study guide

  • An object weighing 100 N is dropped from the top of a building and falls a distance of 35 m to the ground. How much work does gravity do on the object from the time it is dropped to the time it hits the ground?

3500J


The law of conservation of energy states

The law of conservation of energy states

that energy cannot be created nor destroyed.


Final exam study guide

Temperature is

the average kinetic energy of a molecules, feels hot or cold, can be measured


Final exam study guide

  • As the kinetic energy of the molecules in a substance increases, the

heat increases temperature


Final exam study guide

The transfer of energy caused by the collision of molecules is called

conduction


The transfer of energy by the movement of fluids or gases with different temperatures is called

The transfer of energy by the movement of fluids or gases with different temperatures is called

convection


Energy from the sun reaches earth by

Energy from the sun reaches Earth by

radiation


Convection currents rise in air because

Convection currents rise in air because


Which method of energy transfer does not involve movement of matter

Which method of energy transfer does not involve movement of matter?

Radiation


Final exam study guide

Which of the following substances is the best conductor of transferring energy as heat?a.carbon dioxide gasc.ironb.waterd.rubber


A cold blooded reptile basks on a warm rock in the sun its body is warmed by

A cold-blooded reptile basks on a warm rock in the sun. Its body is warmed by

Radiation and conduction


Final exam study guide

The End!

The End!

The End!

The End!

The End!

The End!

The End!


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