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A mass of air has a pressure of 9.0 psi and a volume of 45 ft.³. If the air is compressed to a new volume of 30 ft.³, what is the new pressure?

If A = 2 ft. and the green box weighs 40 lbs. what is the torque acting on the A side of this lever?

What is the first step to solving a problem where multiple forces are acting on an object?

Which of the following is not a modulus of elasticity?

Boyle’s law defines the relationship between pressure and volume as:

If the green box weighs 70 lbs. and is 3 ft. from the fulcrum, how much force would need to be applied at the blue arrow to balance the lever if the arrow’s distance from the fulcrum is 7 ft.?

If the handles of a wheelbarrow are 0.5 ft. from the wheel axle, how many pounds of force must you exert to lift the handles if it’s carrying a 220 lbs. load concentrated at a point 0.5 ft. from the axle?

The science that deals with motion and the forces that produce motion is called which of the following?

A box is resting on a smooth floor. Static friction is present:

If the radius of the axle is 5 and the radius of the wheel is 10, what is the mechanical advantage of this wheel and axle configuration?

Friction between two or more solid objects that are not moving relative to each other is called:

If the green box weighs 55 lbs. and is 5 ft. from the fulcrum, how much weight would need to be placed at the blue arrow to balance the lever if the arrow’s distance from the fulcrum is 2 ft.?

Which of the following will increase the mechanical advantage of this inclined plane?

A box is resting on a smooth floor. Static friction is present:

Tension is a force that does which of the following?

Two gears are connected and the larger gear drives the smaller gear. The speed of rotation will __________ and the torque will __________.

The advantage of using a third-class lever is that it increases:

Potential energy is energy that has the potential to be converted into what?

If a 50 lbs. weight is placed 7 ft. from the fulcrum at the blue arrow and the green box is 8 ft. from the fulcrum, how much would the green box have to weigh to balance the lever?

A mass of air has a pressure of 12.0 psi and a volume of 60 ft.³. If the air is compressed to a new volume of 35 ft.³, what is the new pressure?

Drag is a type of:

The mechanical advantage of a third class lever is always:

Which of these is the formula for force?

The mechanical advantage of a wheel and axle is equal to the:

A ramp is an example of which kind of simple machine?

The standard unit of energy is the:

Which of these is the formula for kinetic energy?

A screw is most like which of the following other simple machines?

What type of load doesn’t create specific stress points or vary with time?

Which of the following is not a type of bridge?

When it comes to force, mass and acceleration have what kind of relationship?

What’s the first gear in a gear train called?

Normal force is generally equal to the __________ of an object.

The work done by the sum of all forces acting on a particle equals the change in the kinetic energy of the particle. This defines which of the following?

Which of the following is not a characteristic of a ceramic?

A 370 lb. barrel is rolled up a 13 ft. ramp to a platform that’s 4 ft. tall. What effort is required to move the barrel?

The work done by the sum of all forces acting on a particle equals the change in the kinetic energy of the particle. This defines which of the following?

If the handles of a wheelbarrow are 3 ft. from the wheel axle, what force must you exert to lift the handles if it’s carrying a 270 lb. load concentrated at a point 0.5 ft. from the axle?

The force amplification achieved by using a tool, mechanical device or machine system is called:

What is the efficiency of a machine has work input of 65 ft⋅lb and work output of 58 ft⋅lb?

The force required to initally get an object moving is __________ the force required to keep it moving.

The mechanical advantage of a block and tackle is equal to which of the following?

According to Boyle’s law, for a fixed amount of gas kept at a fixed temperature, which of the following are inversely proportional?

Friction between two or more solid objects that are not moving relative to each other is called:

If the green box weighs 55 lbs. and 25 lbs. of force is applied 5 ft. from the fulcrum at the blue arrow, how far from the fulcrum would the green box need to be placed to balance the lever?

A 370 lb. barrel is rolled up a 11 ft. ramp to a platform that’s 1 ft. tall. What effort is required to move the barrel?

Collinear forces:

An object’s resistance to changes in direction is known as:

According to Boyle’s law, for a fixed amount of gas kept at a fixed temperature, which of the following are inversely proportional?