Physics Quiz

What is a model?

• A model is a detailed explanation of a simple system or process.
• A model is a physical representation of a complex system or process.
• A model is an explanation or representation that shows how something look or works

• A model is a random guess about a system or process.

What is a conceptual model?

• A conceptual model that uses images, drawings or written explaination

• A conceptual model is a tool used for debugging software.
• A conceptual model is a type of mathematical equation.
• A conceptual model is a physical representation of an object.

What is a physical model?

• A physical model is a type of virtual reality simulation.
• A physical model is a theoretical concept without any practical application.
• A physical model is a 3D model that you can touch or feel.

• A physical model is a digital representation of a real object.

Describe how to position a lever to get the greatest advantage possible.

• Position the lever with equal length effort and load arms.
• Position the lever vertically instead of horizontally.
• Position the lever with the load arm longer than the effort arm.
• Increasing the effort arm or reducing the load arm.

What is effort?

• The amount of force you use to do work.

• Exertion of physical or mental energy towards achieving a goal or not completing a task.
• Exertion of physical or mental energy towards avoiding a goal or completing a task.
• Exertion of physical or mental energy towards failing a goal or completing a task.

What is work?

• Work is the measure of force exerted on an object
• Work is the measure of distance traveled by an object
• Moving an object across a distance, using force/effort to do work.

• Work is the measure of time spent on a task

What is advantage?

• Something that decreases the effort to do work.

• A harmful attribute
• A neutral feature
• A plan

Newton's First Law States

• Newton's First Law of Motion is also known as the Law of Gravity.
• Newton's First Law states that an object will accelerate if a force is applied to it.
• An object at motion stays in motion, an object at rest stays at rest unless acted upon an unbalanced force.

• Newton's First Law states that an object in motion will eventually stop.

What's inertia?

• Inertia is the ability of an object to change its state of motion easily.
• Inertia is the force that causes objects to move.
• Inertia is the resistance of an object to changes in its state of motion.
• Inertia is the same as momentum.

What are some examples of inertia and Newton's First Law?

• A car crash, a dinosaur on a trampoline

• A car reversing when the engine is turned off
• A book falling off a table due to gravity
• A ball rolling uphill without stopping