Explain why a seesaw is closest in arrangement to a first class lever.
Explain the difference between mass and weight for objects on Earth and on the Moon.
To overcome an object's inertia, it must be acted upon by __________.A.gravityB.energyC.forceD.acceleration
The neck is a __________.A.first class leverB.second class leverC.third class leverD.fourth class lever
Explain how Newton's law of inertia describes the motion of objects.
Explain what is meant by the term mechanical advantage.
Explain what distinguishes first class levers from second and third class levers.
What is kinetic energy?A.the energy an object has due to its motionB.the energy derived from chemical reactionsC.the energy an object has due to its positionD.the energy an object releases as heat
The most common lever in the human body is the __________.A.first class leverB.second class leverC.third class leverD.fourth class lever
What tissue connects muscles to bones?A.ligamentsB.tendonsC.cartilageD.smooth muscle
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