Anatomy Basics
Question: What does homeostasis mean?
Answer: Keeping stable internal conditions in the body. (balance)
Question: What body system supports the body and protects organs?
Answer: Skeletal system
Question: What is a reference point?
Answer: A starting point used to describe an object’s position.
Question: What is a force?
Answer: A push or pull.
Question: What is energy?
Answer: The ability to do work or cause change.
Question: What are the levels of organization in the human body from smallest to largest?
Answer: Cell → Tissue → Organ → Organ System → Organism
Question: What type of muscle can you choose to move?
Answer: Skeletal muscle
Question: What is motion?
Answer: A change in position compared to a reference point.
Question: What is the unit for force?
Answer: Newtons, or N.
Question: What formula is used to calculate work?
Answer: Work = Force × Distance
Question: What is the term for the front side of the body?
Answer: Anterior
What is the main job of the digestive system?
To break down food into nutrients the body can use
Question: What formula is used to calculate speed?
Answer: Speed = distance ÷ time
Question: What is friction?
Answer: A force that resists motion between surfaces that touch.
Question: What is work in science?
Answer: Work happens when a force moves an object in the direction of the force.
Question: What is the term for the back side of the body?
Answer: Posterior
Question: What type of joint moves in one direction only works like a door?
Answer: Hinge joint
Question: What is the difference between speed and velocity?
Answer: Velocity includes direction, but speed does not.
Question: What is gravity?
Answer: An attractive force between objects with mass.
Question: What is a simple machine?
Answer: A machine that makes work easier using one movement.
Question: What is the term for a body part that is above another body part?
Answer: Superior
Question: What type of joint allows movement in many directions, like the shoulder or hip?
Answer: Ball and socket joint
Question: What is displacement?
Answer: The distance and direction from the starting point to the ending point.
Question: What is net force?
Answer: The combination of all forces acting on an object.
Question: What simple machine is a ramp?
Answer: Inclined plane
Question: What is the term for a body part that is below another body part?
Answer: Inferior
Question: What two main parts make up the central nervous system?
Answer: Brain and spinal cord
Question: A person walks 20 meters north in 10 seconds. What is their speed?
Answer: 2 m/s
Question: If a box has 15 N pushing right and 15 N pushing left, what is the net force?
Answer: 0 N
Question: What is a compound machine?
Answer: A machine made of two or more simple machines.
Question: What is the difference between medial and lateral?
Answer: Medial means toward the middle. Lateral means toward the sides.
Question: What body system brings oxygen into the body and removes carbon dioxide?
Answer: Respiratory system
Question: What formula is used to calculate momentum?
Answer: p = mv
Question: If a box has 40 N pushing right and 10 N pushing left, what is the net force?
Answer: 30 N to the right
Question: What does the Law of Conservation of Energy say?
Answer: Energy cannot be created or destroyed, but it can be transferred or transformed.
Question: What type of feedback brings the body back toward normal conditions?
Answer: Negative feedback
Question: What type of muscle is involuntary and found in organs?
Answer: Smooth muscle
Question: A 3 kg ball moves at 4 m/s. What is its momentum?
Answer: 12 kg·m/s
Question: Which of Newton’s Laws uses the formula F = ma?
Answer: Newton’s 2nd Law
Question: If a 20 N force moves a box 2 meters, how much work is done?
Answer: 40 J
Question: Give one example of the body maintaining homeostasis.
Answer: Sweating when hot, shivering when cold, keeping blood sugar stable, or maintaining body temperature.
Question: What part of the brain helps with balance and coordination?
Answer: Cerebellum
Question: If two objects move at the same speed, which one has more momentum?
Answer: The object with more mass.
Question: A 6 kg object accelerates at 3 m/s². What force is acting on it?
Answer: 18 N
Question: How does an inclined plane make work easier?
Answer: It lowers the force needed by spreading the work over a longer distance.
Question: Why is homeostasis important for survival?
Answer: It keeps the body’s internal conditions stable so cells, tissues, organs, and organ systems can work correctly.
Question: Explain how the skeletal and muscular systems work together.
Answer: Muscles pull on bones to create movement. Bones provide structure, and muscles provide the force to move them.
Question: A runner goes 3 meters forward, then 4 meters back to the starting line. What is the distance and displacement?
Answer: 5 meters forward and to the right
Question: Explain Newton’s 3rd Law using an example.
Answer: For every action, there is an equal and opposite reaction. Example: When you push on the ground, the ground pushes back on you and helps you move.
Question: A student uses a ramp to load a heavy box into a truck. Which part of the work equation changes to make the job easier?
Answer: The force needed decreases, but the distance increases.