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The degree to which a force causes an object to rotate
Torque is
Velocity involves both speed and direction
Speed is different from velocity because
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Compared to a similar mass, a larger mass requires _____________ Force to achieve the same acceleration rate.
Force is a scalar quality /quantity
Which of the following statements about force is NOT true?
A mechanism
Mechanics advantage is the advantage gained by the use of ________________ in transmitting Force.
Experiences kinetic friction
A hockey puck sliding on the ice
In a clockwise direction
If gear A turns in a counterclockwise direction, how does gear B turn?
Weight is totally dependent on mass
Which of the following statements about weight is NOT true?
The coefficient of static friction is dependent on the nature of the surface the box is resting on
While attempting to push a heavy box across the floor,
4:1
Which of the following represents the mechanical advantage of a wheel and axle system where the driven wheel has a radius of 10" and the drive wheel has a diameter of 5"?
60 pounds
If it takes a force of 20 pounds to stretch the spring one inch, how much force must be applied to stretch the spring three inches?
Use a longer wrench
In order to apply more torque to a bolt, mechanic could
The ent force acting on the vehicle is zero
A vehicle travels at a constant speed on the highway. It can be said that
Tower B will release more water than tower A
The two water towers below are of equal size and height above the ground. If both towers are completely full and their valves are opened, which of the following statements is true?
The cords holding sign B are under 1/3 the tension of the cord holding sign A
Two signs of equal weight are attached to a beam, using cords of equal length. Which of the following statements is true?
First- class lever
The illustration below is an example of which kind of lever?
10 m/s
If a vehicle accerates from a standstill at a rate of 1 m/s^2 , it's velocity after 10 seconds will be
A second-class lever
A wheelbarrow , as pictured below, is an example of
Gear Y moves moves counterclockwise
The gears in the illustration all have the same number of teeth. If gear X moves clockwise, which statement about gear Y is true?