Unit 2 - Kinematics

SI Units & Conversions

100

What is the fundamental SI base unit used to measure mass?

Kilogram (kg)

200

What metric prefix represents a factor of 10³ (or 1,000)?

Kilo- (k)

300

Is temperature measured in degrees Celsius or Kelvin in the standard SI base system?

Kelvin (K)

400

How many meters are equivalent to 2.5 kilometers?

2,500 meters

500

Convert a speed of 72 km/h into base SI units (m/s). 

72,000 m / 3,600 s = 20 m/s

Scalars vs. Vectors

100

Does a scalar quantity have magnitude, direction, or both?

Magnitude only

200

Classify displacement as either a scalar or a vector quantity.

Vector

300

What term describes the scalar equivalent of velocity, measuring only how fast an object moves regardless of direction?

Speed

400

When adding two vectors graphically, should you align them tip-to-tail or tail-to-tail?

Tip-to-tail

500

Name two distinct examples of vector quantities in physics.

Velocity, Acceleration, Displacement, Weight, or Force (any two)

1D Kinematics & Motion Graphs

100

What does the slope of a Position vs. Time (x-t) graph represent?

Velocity

200

What does the slope of a Velocity vs. Time (v-t) graph represent?

Acceleration

300

If an object is moving in a straight line with constant negative acceleration, is its velocity graph horizontal, linear/sloped, or curved?

Linear/sloped (downward slope)

400

A runner moves from x = 5 m to x = 12 m in 2 seconds. What is their average velocity?

Δx/Δt = 3.5 m/s

500

What is the acceleration of a car traveling down a straight highway at a constant speed of 60 mph?

0 m/s²

Gravity, Mass & Weight

100

What is the standard value for gravitational acceleration (g) near Earth's surface?

9.81 m/s²

200

Which property remains constant when an object travels from Earth to the Moon: its mass or its weight?

Mass

300

What is the equation used to calculate the weight force (W) of an object?

W = mg

400

What is the weight of an object with 10 kg of mass on Earth?

10 kg * 9.81 m/s² = 98.1 N

500

If a 10 kg object is dropped in a vacuum near Earth's surface, what speed will it reach after falling for 3 seconds from rest?

9.81 m/s² * 3 s = 29.43 m/s

2D Projectile Motion

100

In 2D projectile motion, what force acts on the projectile while it is in the air?

Gravity (acting downward)

200

Assuming flat ground and no air resistance, at what angle relative to the horizontal is maximum range achieved?

45°

300

What is the vertical component of velocity (v_y) at the peak (apex) of a projectile's flight? ?

0 m/s

400

What trigonometric function is used to resolve initial velocity (v_i) into its horizontal component (v_x)?

Cosine (v_x = vi cosθ)

500

Two identical balls are released simultaneously from the same height: Ball A is dropped straight down, while Ball B is launched horizontally at 10 m/s. Which hits the ground first?

Both hit the ground at the same time (vertical motion is independent of horizontal motion because only gravity acts upon them downward).