Physics Review #2

Which one of these is not a law of motion?

• What goes up must go down.

• An object's velocity remains constant unless an outside force acts upon it.

• F=ma

• Every force has an equal and opposite force.

Which statement supports the law of conservation of energy?

• Energy can be created

• Energy can be destroyed

• Energy is made of matter

• Energy can be converted from one form to another

What type of energy conversion occurs when the rubber band it released?

• elastic potential to kinetic

• gravitational to elastic

• elastic potential to chemical

• elastic potential to thermal

What type of energy does the roller coaster car have at position (a)?

• All potential energy

• All kinetic energy

• 50% potential and 50% kinetic

• It has no energy

What type of energy does the roller coaster car have at position (b)?

• All potential energy

• All kinetic energy

• 50% potential and 50% kinetic

• It has no energy

What type of energy does the roller coaster car have at position (c)?

• All potential energy

• All kinetic energy

• 50% potential and 50% kinetic

• It has no energy

Which variables affect kinetic energy?

• pressure and volume

• velocity and mass

• weight and height

• temperature and weight

Tags

NGSS.MS-PS3-1

Energy is measured in

• Kilograms

• Joules

• Liters

• Centimeters

What is energy?

• what I have after a Monster drink

• what 6th graders have in abundance

• the ability to do work

• none of the above

Tags

NGSS.MS-PS3-5

A wheeled cart is moving to the right at a constant speed. Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?

• Balanced Forces, Constant Speed

• Balanced Forces, Acceleration

• Unbalanced Forces, Constant Speed

• Unbalanced Forces, Acceleration

Tags

NGSS.MS-PS2-2