| Forces | Newtons Laws | Application | Balanced and Unbalanced Forces | Miscellaneous |
|---|---|---|---|---|
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Newtons.
What are the units in which force is measured?
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Objects at rest remain at rest, and objects in motion remain in motion (at constant velocity) unless acted upon by an unbalanced force.
State Newtons First Law of Motion.
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Vector
Force is a ________ so you must always include a direction.
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Overall force on an object when all forces acting on it are combined.
What is Net Force?
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The objects mass and distance between the objects.
The force of gravity between two objects depends on...
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F=m*a
What is the formula for force?
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Newtons Second Law
Which law describes motion produced by unbalanced forces.
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Because the large semi truck has more inertia than the smaller mini cooper. It has more resistance to change.
Explain why it takes a large semi truck more time to take off from a stoplight than it does a mini cooper.
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40 Newtons East (or any direction)
Two girls are pushing a large box down a hallway. One girl is pressing on the box with a force of 15 Newtons and the other with a force of 25 Newtons. What is the net force being placed on the box?
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A change in velocity.
Define Acceleration.
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The force exerted between electrically charged moving particles, creating a field.
Magnetic Force is...
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Inertia
Describes the resistance of an object to change.
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If the clothes line sank with a force of 2 Newtons than when the bird flies away the line will come back up in the opposite direction with a force of 2 Newtons. Newtons Third Law.
Small birds are sitting on a clothes line when a rather large bird comes and lands on the line; causing it to sink with a force of 2 Newtons. Describe what will happen if the large bird flies away.
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The box will not move; balanced.
If a large box has a force of 28 Newtons being exerted upon it on either side what can we assume about the movement of the box? Is this illustrating balanced or unbalanced forces?
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Rolling Friction
Friction involving a moving sphere is called.
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A force that resists motion between two surfaces that are pressed together.
What is friction?
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30 Newtons
What force is being applied to a 15kg box that is accelerating at 2.0 m/sec/sec?
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Use Newton's First law and knowledge of inertia to defend answer.
Why are seatbelts useful? Provide an explanation.
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50 Newtons, The wall does not move therefore the forces are balanced.
If a man presses on a wall with a force of 50 Newtons. What force is the wall exerting on the man? How do you know?
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Fluid Friction
What type of friction was illustrated by the parachute in the force and action lab? Explain how you know.
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Force is a push or a pull that causes an object to move, stop moving or change direction.
Define force.
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For every action their is an equal and opposite reaction.
State Newton's Third Law of Motion.
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Since the Earth has a larger gravitation pull than the moon there is a larger force of attraction pulling us down; this explain why we weigh more on Earth than on the moon. Mass is a measure of matter contained within a body and weight is mass plus the pu
Explain why your weight is different on Earth than it is on the moon; and why your mass would be the same in both locations.
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The total force on the box is 10N. The direction the box will move is to the left. Ms. Thomasson placed a larger force on the box.
If Ms. Thomasson is pushing on a box with a force of 15N to the left and Ms. Clayton is pushing on the opposite side of the box with a force of 5N to the right what is the total amount of force being put on the box? What direction will the box move?
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gravity-caused the marble to roll down the ramp.
friction-marble rolled to a stop.
In the marble madness lab which forces acted upon the marble to slow it down? Speed it up?
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