PHYSICS FOUNDATIONS
What is physics primarily the study of?
A. The composition and reactions of substances
B. The structure and functions of living organisms
C. Matter, energy, motion, and the interactions between them
D. The formation and evolution of planets and stars
Answer: C. Matter, energy, motion, and the interactions between them
Which is the SI unit of length?
A. Decimeter
B. Meter
C. Inch
D. Mile
Answer: B. Meter
Which number has the greatest value?
A. 0.5
B. 0.05
C. 0.005
D. 0.0005
Answer: A. 0.5
On a graph, the independent variable is usually placed on which axis?
A. y-axis
B. x-axis
C. Both axes
D. Neither axis
Answer: B. x-axis.
Which situation describes an object that is moving?
A. A book sitting on a table
B. A parked car
C. A ball rolling across the floor
D. A picture hanging on a wall
Answer: A ball rolling across the floor
Short Answer
A student says: "The car is moving because it has a lot of energy."
What physical quantity would you need to know to describe how fast the car is moving?
Answer: Speed or velocity.
Which unit would be most appropriate for measuring the length of a classroom?
A. Millimeters
B. Meters
C. Kilometers
D. Liters
Answer: B. Meters.
How many significant figures does 3.45 have?
A. 1
B. 2
C. 3
D. 4
Answer: C. 3
A student investigates how the amount of time affects the distance traveled by a toy car.
What is the independent variable?
A. Distance
B. Time
C. Speed
D. The toy car
Answer: B. Time
Which quantity tells you how much ground an object has covered?
A. Distance
B. Mass
C. Temperature
D. Time
Answer: A. Distance.
Which of the following represents a physical quantity?
A. Extremely hot
B. 15 kilograms
C. Very tall
D. Moving quickly
Answer: B. 15 kilograms
Convert 3.6 × 10⁴ into a standard integer (regular number).
Answer is 36,000.
How many significant figures does 0.00450 have?
A. 2
B. 3
C. 4
D. 5
Answer: B. 3
In the same experiment, what would be the dependent variable?
A student investigates how the amount of time affects the distance traveled by a toy car.
Answer: Distance traveled
A student walks 10 meters from the classroom to the hallway and then walks 10 meters back to the classroom.
What is the total distance traveled?
Answer: 20 m
What is the difference between a number and a measurement?
Answer: A measurement includes a numerical value and a unit.
Which conversion is correct?
A. 10 km = 1000 m
B. 10 km = 10,000 m
C. 10 km = 100,000 m
D. 10 km = 1,000,000 m
Answer: B. 10 km = 10,000 m
Which measurement contains 4 significant figures?
A. 0.0405
B. 4.050
C. 40.05
D. 0.405
Answer: C. 40.05
If the time an object travels doubles while its speed remains constant, what happens to the distance traveled?
A. The distance is cut in half.
B. The distance remains the same.
C. The distance doubles.
D. The distance increases by four times.
Answer: C. The distance doubles.
Using the same situation, the student ends up exactly where they started.
A student walks 10 meters from the classroom to the hallway and then walks 10 meters back to the classroom.
What is their displacement?
A. 0 m
B. 10 m
C. 20 m
D. 30 m
Answer: A. 0 m.
Which statement is the best example of using physics to explain something in everyday life?
A. “The ball changes its position as it moves across the floor.”
B. “The ball moves faster because it is heavier than the other ball.”
C. “The ball accelerates downward due to the gravitational force acting on it.”
D. “The ball travels farther because it has a larger volume.”
Answer: C. “The ball accelerates downward due to the gravitational force acting on it.”
A student measures a table and obtains 1.25 m. Express this measurement in millimeters.
Answer: 1,250 mm
Solve for x
2(x + 3) + 4 = 16
Answer
x=3
A car travels at a constant speed. If the time it travels is tripled, what will happen to the distance it covers?
A. It will decrease to one-third.
B. It will increase by a factor of three.
C. It will increase by a factor of nine.
D. It will remain unchanged.
Answer: B. It will increase by a factor of three.
A runner travels 100 m east and then 40 m west.
What is the runner's displacement?
Answer: 60m east