# General Physics: Question Preview (ID: 9843)

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What object has the greatest inertia?
a) a falling leaf
b) a softball in flight
c) a seated high school student
d) a rising helium-filled toy balloon

If the speed of a moving object is doubled, the kinetic energy of the object is...
a) halved
b) doubled
c) unchanged

Which situation describes a system with decreasing gravitational potential energy?
a) a girl stretching a horizontal spring
b) a bicyclist riding up a steep hill
c) a rocket rising vertically from Earth's surface
d) a boy jumping down from the limb of a tree

Compared to the speed of a sound wave in air, the speed of a radio wave in air is...
a) less
b) greater
c) the same
d) There is too little information to answer this question.

A wave of constant wavelength diffracts as it passes through an opening in a barrier. As the size of the opening is increased, the diffraction effects
a) decrease
b) increase
c) remain the same
d) There is too little information to answer this question.

A carpenter hits a nail with a hammer. Compared to the magnitude of the force the hammer exerts on the nail, the magnitude of the force the nail exerts on the hammer is
a) less
b) greater
c) the same
d) There is too little information to answer this question.

When a light wave enters a new medium and is refracted, there must be a change in the light wave's
a) color
b) frequency
c) period
d) speed

The time required for a wave to complete one full cycle is called the wave's
a) frequency
b) period
c) velocity
d) wavelength

Which fundamental force is primarily responsible for the attraction between protons and electrons?
a) strong
b) weak
c) gravitational
d) electromagnetic

The mass of a paperclip is approximately
a) 1 x 10^6 kg
b) 1 x 10^3 kg
c) 1 x 10^-3 kg
d) 1 x 10^-6 kg

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