Week 8 Vocabulary quiz

What is a Frictionless surface?

• A) A surface where friction is very high

• B) A surface that prevents objects from moving

• C) A surface where objects slide without slowing down

• D) A surface that only works in space

What does the Gravitational Constant describe?

• How objects lose mass over time

• The force of friction between objects

• The strength of gravity in the universe

• How fast objects accelerate on Earth

The Law of Action-Reaction states that:

• A) A force always requires a mass to act on

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

• C) Objects in motion stay in motion unless acted upon

• D) Energy cannot be created or destroyed

According to the Law of Force and Acceleration, an object will:

• Stop moving when no force is applied

• Accelerate based on the force applied and its mass

• Travel faster if more mass is added

• Stay still unless another object moves it

What does the Law of Inertia describe?

• A) A moving object stays in motion unless acted on by a force

• B) A heavier object falls faster than a lighter one

• C) All energy must be used up eventually

• D) Friction is always present between objects

Newton’s Second Law of Motion is expressed by which formula?

• F = ma (Force = Mass × Acceleration)

• E = mc² (Energy = Mass × Speed of Light²)

• P = mv (Momentum = Mass × Velocity)

• F = mg (Force = Mass × Gravity)

Which of the following is an example of Elastic Potential Energy?

• A running car

• A compressed spring

• A flashlight in use

• A battery being charged

What is an Energy Transformation?

• Energy that disappears during a process

• Energy changing from one form to another

• Mass turning into energy

• Energy stored without being used

The Law of Conservation of Energy states that:

• A) Energy can only be used once

• B) Energy cannot be created or destroyed, only transformed

• C) The total amount of energy decreases over time

• D) Energy is only transferred through motion

What is an example of Chemical Energy?