Set 1
In a chemical reaction, what do you call the substances you start with?
Reactants
What number on the pH scale represents a neutral substance?
7
What is the unit for measuring force?
Newton
Which particle in an atom has no electrical charge?
Neutron
Which of Newton’s laws explains the relationship between force, mass, and acceleration?
Second Law
Which body system is responsible for transporting blood throughout the body?
Circulatory system
Which part of the urinary system is responsible for filtering waste from the blood?
Kidneys
Which of the following is responsible for pumping blood throughout the body?
Heart
What is the term for the amount of space an object occupies?
Volume
If a 5 kg object is accelerated at 3 m/s², what is the force applied to it?
15 N
What is the primary function of the lymphatic system?
To help fight infections
What is the rate at which speed changes called?
Acceleration
What are the tiny air sacs in the lungs where gas exchange takes place?
Alveoli
Which of the following is NOT a function of the skeletal system?
A. Producing red blood cells
B. Storing minerals
C. Generating body heat
D. Protecting internal organs
C. Generating body heat
An object of mass 10 kg is moving at a speed of 4 m/s. What is its kinetic energy?
80 J
Which group of elements on the periodic table is the most reactive?
Alkali metals
Which type of blood vessel carries blood away from the heart?
Arteries
During a reflex action, which part of the nervous system directly controls the response before the brain is involved?
Spinal cord
Which system produces hormones that help regulate growth and metabolism?
Endocrine system
The process by which oxygen and nutrients are exchanged between the blood and tissues is called
Diffusion
Which part of the digestive system is mainly responsible for absorbing nutrients?
Small intestine
Why are noble gases considered stable and unreactive?
They have a full outer electron shell
Which subatomic particles are responsible for forming chemical bonds?
Electrons
Which system includes skin, hair, and nails and acts as a barrier to protect the body?
Integumentary system
Which group the periodic table contains elements that are all gases at room temperature?
Noble gases