# 1.1

### 40 terms by brendaaa2013

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pound or "lb"

Newton

both

### whats a scalar.?

a measurable quantity, such as mass, that has both a magnitude and a direction.

### what is vector.?

a measurable quantity, such as force, that has both a magnitude and a direction.

### what is Torque.?

Torque is the effect of rotational force applied on a body at some distance from its axis of rotation.

### How is Torque found.?

By multiplying the "force applied" times the length of the lever arm.

True.

True.

### How are forces measured.?

With spring balances.

### what is equilibrium?

a result of balanced forces.

### how are forces described.?

by giving its magnitude and its direction.

### what are some other important vectors besides force.?

velocity, acceleration and momentum.

### what are three examples of scalar.?

temperatur, preesure and mass.

an arrow.

### what does the arrows length represent.?

magnitude of the force

### what does the arrow heading represent.?

direction of the force

yes.

subtract.

### what can unbalanced mechanical forces cause?

a change in speed, direction or shape of an object.

no change.

graphically.

no.

### what is mass.?

the total amount of matter contained in an object.

no

### what does mass depend on?

type and number of atoms contained in an object.

### what does weight depend on?

it depends on where an object is.

pounds mass

### what are 3 examples of Torque?

gears, crankshafts, flywheels, fans, motors, bolts and screws.

### what is "cw"?

clockwise rotation

### what is "ccw"?

counterclockwise rotations.

yes

T = F × L

### what is force often called?

pull of gravity or just gravity

### what is the mosst common forces in our lives?

the pull of earth on us.

### what does torque consists of?

linear mechanical force and a lever arm.

### what happens if the clockwise and counterclockwise torques cancel each other?

it is turned into equilibrium.

### what is AB?

the length of lever arm.

### where are most torque wrenches found in?

automotive shops are calibrated in either Ib · ft or N · m.

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