Engineering and Physics Quiz

Which activity would more likely be performed by engineers than by scientists?

• explaining how forces impact matter

• collecting data and developing theories

• scientific principles to design a structure

• Applying scientific principles to design a structure.

Which phrase describes a risk of an engineering design?

• a disadvantage of a solution

• a favorable effect of a solution

• an advantage that may happen

• a cost that may or may not happen

Which quantity has both magnitude and direction?

• energy

• scalar

• unit

• vector

Which statement describes the motion of a ball as it drops onto a vertical spring?

• The acceleration of the ball decreases as the spring shrinks.

• The acceleration of the ball decreases as the spring extends.

• The velocity of the ball changes from positive to negative as the spring shrinks.

• The velocity of the ball changes from negative to positive as the spring extends.

Which statement is true when the same force is applied to two objects of different masses?

• Both objects will accelerate at the same rate and in the same direction.

• Both objects will accelerate at the same rate but in different directions.

• The object with greater mass will experience a greater acceleration than the object with less mass.

• The object with greater mass will experience a smaller acceleration than the object with less mass.

Which statement best describes the kinetic friction acting on an object that is touching a surface?

• Kinetic friction is independent of the normal force.

• Kinetic friction is usually more than static friction.

• Kinetic friction acts perpendicularly to the surface.

• Kinetic friction depends on the qualities of the surfaces in contact.

Which statement is always true about the normal force?

• It is a scalar quantity.

• It equals F, in magnitude.

• It points vertically upward.

• It acts perpendicularly to a surface.

How does the stress on an object change as the area increases?

• The stress increases.

• The stress decreases.

• The stress remains the same.

• The amount of stress is unaffected by the area.

Which statement accurately compares the momentum of two moving objects?

• The more massive object will have less momentum if its velocity is greater.

• The less massive object will have less momentum if the velocities are the same.

• The more massive object will have less momentum if the velocities are the same.

• The object with the higher velocity will have less momentum if the masses are equal.

Two playground balls collide in an inelastic collision. Which statement correctly describes the total momentum and kinetic energy of the system after the collision?

• Both momentum and kinetic energy are conserved.

• Neither momentum nor kinetic energy is conserved.

• Kinetic energy is conserved, but momentum is not conserved.

• Momentum is conserved, but kinetic energy is not conserved.