Catapult and Conservation of Energy

Which letter shows where is potential energy stored or at its maximum point?

• Y

• W

• X

• Z

Tags

NGSS.MS-PS3-2

Energy that transforms from potential to kinetic is neither_____ nor _______.

• created, force

• created, destroyed

• force,motion

• destroyed, law of conservation of energy

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

What was the proof that kinetic energy was released from the catapult?

• How still the catapult sat during the launch.

• The distance the lever could be pulled back to launch the catapult.

• The distance the projectile flew from the catapult.

• The force that the lever exerted on the marshmallow.

Tags

NGSS.MS-PS3-5

The law of conservation of energy describes how the amount of total energy can change in a closed system. Which of these statements correctly describes this law?

• The amount of kinetic energy in a system is a constant value.

• Energy can be converted from one form into another, but it cannot be created or destroyed.

• An object can have potential energy or kinetic energy, but not both at the same time.

• The amount of energy created when an object moves is equal to the energy destroyed when it stops moving.

Tags

NGSS.MS-PS3-5

Energy is always conserved. It cannot be created or destroyed. It can, however, be transferred between objects or systems, from one form to another. Which of the following is true of the relationship between kinetic and potential energy?

• When a system loses kinetic energy, it loses potential energy.

• As kinetic energy decreases, potential energy decreases.

• When a system gains kinetic energy, it loses potential energy.

• As kinetic energy increases, potential energy increases.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

According to the law of conservation of energy, the total amount of energy in the universe ____.

• remains constant

• changes constantly

• increases

• decreases

Tags

NGSS.MS-PS3-5

Which equation is correct?

• mechanical energy = kinetic energy – potential energy

• mechanical energy = potential energy – kinetic energy

• mechanical energy = kinetic energy + potential energy

• mechanical energy = kinetic energy × potential energy

What is the primary energy transformation that occurs in a catapult when it is released?

• Potential energy to kinetic energy

• Kinetic energy to potential energy

• Thermal energy to kinetic energy

• Chemical energy to potential energy

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

Which of the following best describes the law of conservation of energy in the context of a catapult?

• Energy is lost as heat during the launch

• Energy is created during the launch

• Energy is transformed but the total energy remains constant

• Energy is destroyed during the launch

Tags

NGSS.MS-PS3-5

In a catapult experiment, if the projectile reaches a higher altitude, what can be inferred about its energy?

• It has more kinetic energy at the peak

• It has more potential energy at the peak

• It has less potential energy at the peak

• It has no energy at the peak

Tags

NGSS.MS-PS3-2