Energy Section 1 Quiz

What is a simple machine?

• A machine that consists of two or more simple machines

• An object that is used to help complete a task by changing the direction of motion or the amount of required force.

• A bulldozer

• Something that does not help me

What is a compound machine?

• Something I use everyday.

• A machine that makes life easier.

• A machine that consists of more than one simple machine.

• A screw

How many simple machines are there?

• 8

• 10

• 9

• 6

An object won't change its motion unless acted upon by a force.

• Newtons 1st Law

• Newtons 2nd Law

• Newtons 3rd Law

What is potential energy?

• Stored energy

• energy caused by force

• Energy an object has due to motion

• Mechanical energy

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How does gravity affect the motion and speed of an object?

• Gravity affects the trajectory of an object.

• Gravity makes objects lose momentum.

• Gravity is a force that pulls objects down toward the ground. When objects fall to the ground, gravity causes them to accelerate.

• Gravity affects the shape of an object.

Tags

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is the energy an object has due to motion.

Tags

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What involves a change in the position of an object over time?

• Gravity

• Motion

• Velocity

• Speed

Heavier objects need a larger force to move them.

• Newtons 1st Law

• Newtons 2nd Law

• Newtons 3rd Law

Tags

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For every action there is an equal and opposite reaction.

• Newtons 1st Law

• Newtons 2nd Law

• Newtons 3rd Law

Tags

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