Force Motion and Energy Day 5

When a swimmer pushes the water backwards, what happens according to Newton's third law, the law of action-reaction?

• The water pushes the swimmer forward with an equal and opposite force.

• The swimmer's acceleration is directly proportional to the force they exert on the water.

• The swimmer will continue moving forward unless an unbalanced force acts upon them.

• The energy the swimmer uses to push the water is transformed into forward motion.

Tags

NGSS.MS-PS2-1

According to the law of force and acceleration, what is the relationship between force, mass, and acceleration?

Tags

NGSS.HS-PS2-1

A soccer ball is kicked across a field. What does the law of inertia say about the motion of the soccer ball?

• Force equals mass times acceleration.

• For every action, there is an equal and opposite reaction.

• The soccer ball at rest stays at rest, and the soccer ball in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force like friction or a kick.

• The total momentum of the soccer game is constant.

What type of energy is stored in a battery?

• Kinetic energy

• Solar energy

• Light energy

• Electrical energy

Tags

NGSS.HS-PS1-4

A worker applies a force to move a crate across the floor. How is the work done by the worker on the crate calculated?

What is potential energy?

• The energy possessed by an object due to its motion

• The energy possessed by an object due to its position or condition

Tags

NGSS.MS-PS3-2

When a soccer ball is kicked and it flies through the air, which type of energy is primarily in use?

• Potential energy

• Kinetic energy

• Electrical energy

• Solar energy

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NGSS.MS-PS3-5

What is light energy?

• Energy that is capable of performing work or overcoming resistance.

• The energy possessed by an object due to its position or condition.

• The energy that is transferred through electromagnetic waves.

• The energy derived from the movement of charged particles.

What is the primary source of solar energy?

• The moon

• The sun

• Electricity

• Wind

Tags

NGSS.MS-ESS2-4

Which law explains why it is harder to push a heavy object than a lighter one when applying the same amount of force?

• Law of action-reaction

• Law of force and acceleration

• Law of inertia

• Law of conservation of energy

Tags

NGSS.MS-PS2-2