8th Grade CAST Review Exam – Complete Science
Practice Questions and Answers (California Science Test
Preparation)
Compression (Elastic) - correct answer ✔✔ Pushing force. it can be an upward force.
Tension (Elastic) - correct answer ✔✔ Pulling force
Unbalanced forces - correct answer ✔✔ Change in velocity
Balanced forces - correct answer ✔✔ No Change in velocity
Velocity - correct answer ✔✔ Speed and direction
Air Resistance - correct answer ✔✔ Slows down objects in motion
Mass - correct answer ✔✔ Amount of matter
unit is grams or kilograms
Sliding friction - correct answer ✔✔ slows down sliding objects
Rolling friction - correct answer ✔✔ slows down objects that are rolling
Static Friction - correct answer ✔✔ objects that do not move due to the weight of the object on
the surface of another object
, Fluid Friction - correct answer ✔✔ when a solid surface moves through a fluid
Friction - correct answer ✔✔ When two surfaces rub against each other slowing down the
motion- heat is produced
Acceleration - correct answer ✔✔ When an object speeds up
unit is m/s/s
Weight - correct answer ✔✔ Gravity pushing down on the mass of an object causing weight.
Weight is a downward force.
Inertia - correct answer ✔✔ Tendency to resist any change in motion
Potential Energy - correct answer ✔✔ Energy that is stored.
Kinetic Energy - correct answer ✔✔ Energy in motion.
Newton's 1st Law - correct answer ✔✔ The law states that an object will stay at rest or continue
in a straight line unless an outside force acts on it. It is the same as Inertia.
Newton's Second Law - correct answer ✔✔ Force equals mass multiplied by acceleration.
Newton's Third Law - correct answer ✔✔ For every action there is an equal and opposite
reaction.
Speed - correct answer ✔✔ How fast an object is moving. It is the distance divided by the time
is takes to travel.
Practice Questions and Answers (California Science Test
Preparation)
Compression (Elastic) - correct answer ✔✔ Pushing force. it can be an upward force.
Tension (Elastic) - correct answer ✔✔ Pulling force
Unbalanced forces - correct answer ✔✔ Change in velocity
Balanced forces - correct answer ✔✔ No Change in velocity
Velocity - correct answer ✔✔ Speed and direction
Air Resistance - correct answer ✔✔ Slows down objects in motion
Mass - correct answer ✔✔ Amount of matter
unit is grams or kilograms
Sliding friction - correct answer ✔✔ slows down sliding objects
Rolling friction - correct answer ✔✔ slows down objects that are rolling
Static Friction - correct answer ✔✔ objects that do not move due to the weight of the object on
the surface of another object
, Fluid Friction - correct answer ✔✔ when a solid surface moves through a fluid
Friction - correct answer ✔✔ When two surfaces rub against each other slowing down the
motion- heat is produced
Acceleration - correct answer ✔✔ When an object speeds up
unit is m/s/s
Weight - correct answer ✔✔ Gravity pushing down on the mass of an object causing weight.
Weight is a downward force.
Inertia - correct answer ✔✔ Tendency to resist any change in motion
Potential Energy - correct answer ✔✔ Energy that is stored.
Kinetic Energy - correct answer ✔✔ Energy in motion.
Newton's 1st Law - correct answer ✔✔ The law states that an object will stay at rest or continue
in a straight line unless an outside force acts on it. It is the same as Inertia.
Newton's Second Law - correct answer ✔✔ Force equals mass multiplied by acceleration.
Newton's Third Law - correct answer ✔✔ For every action there is an equal and opposite
reaction.
Speed - correct answer ✔✔ How fast an object is moving. It is the distance divided by the time
is takes to travel.
