Ready, Aim, ...
Pressure Problems
Centroid of Attention
This is Your Moment
Beam Me Up
100

This force accelerates all objects toward Earth at approximately 9.8 m/s². or 32.2 ft/s²

What is gravity?

100

This type of power uses compressed gas to transmit force and motion.

What is pneumatic power?

100

This term is often used interchangeably with the centroid of a uniform object.

What is center of gravity?

100

This is the turning effect produced by a force acting on an object, perpendicular to its distance.

What is a moment?

100

This is the amount a beam bends or moves when a load is applied.

What is beam deflection?

200

Unlike speed, this quantity includes both magnitude and direction.

What is velocity?

200

Pressure, volume, and this third property are the three key properties used to describe gas behavior.

What is temperature?

200

The centroid of a semicircle is located this distance from its flat edge.

What is 4r3π\frac{4r}{3\pi}3π4r?

200

A system is in this state when the sum of all clockwise moments equals the sum of all counterclockwise moments.

What is rotational equilibrium?

200

This property describes a material’s resistance to bending or deformation under load.

What is the Modulus of Elasticity (E)?

300

If a projectile's horizontal distance traveled is represented by x and its initial velocity is Vi this equation can be used to determine the firing angle.

What is 2(theta) = - sin (-gx/Vi2)
300

This gas law states that if temperature remains constant, pressure and volume are inversely proportional.

What is Boyle's Law?

300

The centroid of a right triangle is located this distance from the right-angle corner along both the base and height.

What is one-third of the base and one-third of the height?

300

A wrench is 0.3 m long. A force of 60 N is applied at a right angle. This is the moment produced about the bolt.

What is 18 N·m?

300

This measurement depends on both the width and height of a beam and strongly affects stiffness.

What is the Area Moment of Inertia (I)?

400

Assuming the same launch speed, this launch angle produces the greatest horizontal distance.

What is 45°?

400

A pneumatic tank has a gauge pressure of 80 psi. Adding atmospheric pressure gives this absolute pressure.

What is 94.7 psi absolute?

400

A rectangle has a width of 12 inches and a height of 8 inches. The coordinates of its centroid are these.

What is (6,  4)?

400

A 40 N weight is placed 0.30 m to the left of a pivot. A second weight of 25 N is placed on the right side of the pivot. Where must the 25 N weight be placed for the system to be in rotational equilibrium?

This second weight must be placed 0.48 m from the pivot for the beam to balance.

400

A 2×12 beam (actual dimensions 1.5 in × 11.5 in) is placed in joist orientation (vertical, strong axis). This is its approximate area moment of inertia.

What is about 190.1 in⁴?

500

A ballistic launcher fired a projectile 45 feet with a firing angle of 25°. Using the equation given, what is the initial velocity of the object?


Vi = root of -gx / sin(2theta)

What is 43.5 ft/s?

500

A sealed tank contains air at a pressure of 100 psi absolute and a temperature of 300 K. The tank is heated to 450 K while the volume remains constant. What is the pressure of the gas after it is heated?

What is 150 psi?

500

A right triangle has a base of 9 inches and a height of 12 inches. The centroid is located at these coordinates measured from the right-angle corner.

What is (3,  4)?



500

A 100 N point load is placed 1.5 m from the left support on a 4.0 m beam supported at both ends. What is the reaction force at the left support?

What is 62.5 N upward?

500

A simply supported beam has a span of 10 ft (120 in). It has a moment of inertia of 18.6 in⁴, a modulus of elasticity of 1,600,000 psi, and a centered load of 300 lb. This is the resulting beam deflection.

What is 0.74 inches (approximately)?

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