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A ________ is a push or pull exerted on one object by another.
Force
A force of 3 newtons is traveling 180 degrees west with a second force traveling the same direction with 6 newtons. What is the resulting force?
9 newtons 180 degrees west
A force traveling 180 degrees west at 7 newtons is met with an opposing force of 5 newtons. What is the resulting force?
2 newtons 180 degrees west
What is the difference between weight and mass?
Mass will never change. Weight will change with gravity.
What are the metric and English units for force?
Metric = Newton
English = Pound
What tool is commonly used to measure force
Spring scale
Two forces acting in opposite directions on an object, and equal in size can be defined as...
Balanced forces
when two forces acting on an object are not equal in size can be defined as...
Unbalanced forces
What are the metric and English units for torque?
Nm and lbft
What 2 components are needed to calculate torque?
Force and length of lever
A vector must have what 2 components?
Magnitude and direction
Explain 2 ways torque could be increased.
Increasing force. Increasing length of lever / radius
A force is traveling 10 N at 45 degrees north west. A second force is traveling 10 N at 45 degrees north east. What is the resulting force?
10 newtons north 90 degrees
A mechanic is capable of applying a max of 40 pounds of force to his wrench. If the mechanic wants to apply 120Ibft of torque, how long must the wrench be?
3 feet
A force is applied to a box with 50 newtons 180 degrees east and a second force is applied to the same box at 50 newtons at 0 degrees west. What force is needed to balance the 2 forces?
No force needed to balance
Explain the purpose of a torque wrench
To apply a certain amount of rotational force to an object.
How much torque is produced by opening a jar of pickles if the lid on the jar has a radius of 3.8 centimeters and the force exerted tangentially to the lid is 150 newtons?
5.7 Nm
Explain the procedure for finding the resulting force of 3 other forces.
Line forces up tip to tail, to scale, with correct angles.
A science tech student draws one vector traveling north and one vector traveling south. If the vector traveling north is 6 inches long and 0.5 inches equals 1 newton, what can you confer about the balanced vector traveling south?
12 newtons south
6 forces are applied to an object. 1) 5 newtons north 90 degrees. 2) 3 newtons north west at 135 degrees. 3) 10 newtons west 180 degrees. 4) 5 newtons south at 270 degrees. 5) 3 newtons south east at 315 degrees. 6) 10 newtons east at 0 degrees.
What direction will the object travel?
It will be motionless
How old was Isaac Newton when he noticed an apple falling in his garden and began unraveling the mysteries of gravity?
23 years old