Measurements & Motion
Question: What metric unit is commonly used to measure distance in physics?
Answer: Meters (m)
Question: A position-time graph shows an object's ______ at different times.
Answer: Position
Question: Velocity is speed with what extra information?
Answer: Direction
Question: A force is a push or a ______.
Answer: Pull
Question: The symbol Δ (delta) represents what?
Answer: Change between two points
Question: On a position-time graph, a horizontal line means the object is doing what?
Answer: Not moving (stopped)
Question: Give an example of velocity.
Answer: 15 m/s north
Question: What unit is used to measure force?
Answer: Newtons (N)
Question: An object starts at the 3 cm mark and ends at the 12 cm mark. What is its length?
Answer: 9 cm
Question: What does the slope of a position-time graph represent?
Answer: Speed
Question: An object changes speed, direction, or both. What quantity is changing?
Answer: Velocity
Question: What formula represents Newton's Second Law?
Answer: F = ma
Question: What instrument is used to measure time?
Answer: Stopwatch
Question: What is the formula for speed.
Answer: Speed = Distance ÷ Time
Question: What is acceleration?
Answer: The rate of change of velocity
Question: What is friction?
Answer: A force that opposes motion
Question: Motion is a change in ______ over time.
Answer: Position
Question: An object moves 20 m in 4 s. What is its speed?
Answer: 5 m/s
Question: Positive acceleration means an object is generally doing what?
Answer: Speeding up
Question: Two forces act in opposite directions: 8 N right and 3 N left. What is the net force?
Answer: 5 N right
Question: What is distance?
Answer: The total length traveled by an object
Question: What is the unit for speed?
Answer: m/s
Question: Negative acceleration is also called what?
Answer: Deceleration
Question: A 10 kg object accelerates at 2 m/s². What force is applied?
Answer: 20 N
Question: A walker travels 4 m east, then 6 m east. What is the total distance traveled?
Answer: 10 m
Question: A bike travels 150 m in 30 s. What is its speed?
Answer: 5 m/s
Question: A car speeds up from 5 m/s to 15 m/s in 5 s. What is its acceleration?
Answer: 2 m/s²
Question: A 0.25 kg soccer ball accelerates at 12 m/s². What force is applied?
Answer: 3 N
Question: Name the three ways to describe motion.
Answer: Words, graphs, and equations
Question: An object travels at 10 m/s for 8 s. How far does it travel?
Answer: 80 m
Question: A skateboard traveling at 10 m/s stops in 2 s. What is its acceleration?
Answer: -5 m/s²
Question: A 60 N force acts on a 15 kg object. What is the acceleration?
Answer: 4 m/s²