Understanding Motion and Measurements

What is the formula for calculating speed?

• Speed = Distance / Time

• Speed = Distance + Time

• Speed = Distance - Time

• Speed = Time / Distance

How does velocity differ from speed?

• Velocity measures distance traveled over time, while speed does not.

• Velocity differs from speed in that it includes direction, whereas speed does not.

• Velocity is always greater than speed.

• Speed is a vector quantity, while velocity is a scalar.

If a car travels 100 meters north in 5 seconds, what is its speed?

• 15 meters per second

• 25 meters per second

• 10 meters per second

• 20 meters per second

What is the difference between distance and displacement?

• Distance and displacement are the same concept.

• Displacement measures the total time taken to travel.

• Distance is always greater than displacement.

• Distance is the total path length traveled; displacement is the shortest straight-line distance with direction.

If you walk 3 km east and then 4 km west, what is your displacement?

• 1 km east

• 1 km west

• 3 km east

• 4 km east

What does acceleration mean in terms of motion?

• Acceleration is the change in velocity per unit time.

• Acceleration is the total force acting on an object.

• Acceleration refers to the distance traveled over time.

• Acceleration is the speed of an object at rest.

If a car slows down from 60 km/h to 30 km/h, what is this called?

• Speeding

• Cruising

• Acceleration

• Deceleration

How do you calculate acceleration?

• a = (v_f - v_i) / t

• a = v_i / t

• a = (v_f * t) + v_i

• a = v_f + v_i

What unit is commonly used to measure time?

• seconds

• hours

• minutes

• days

If a runner completes a 400-meter lap in 50 seconds, what is their average speed?

• 6 meters per second

• 10 meters per second

• 8 meters per second

• 12 meters per second