Kinematics
This quantity is the rate of change of position with respect to time.
What is velocity?
On a ramp inclined at angle θ, this is the component of weight parallel to the ramp.
What is mg sinθ
Work is zero when this condition between force and displacement is met.
What is when the force is perpendicular to displacement?
Angular velocity is typically measured in this unit.
What is radians per second?
This law explains why the pressure in a moving fluid decreases as its speed increases.
What is Bernoulli’s Principle?
An object moving with constant acceleration has this kind of velocity-time graph.
What is a straight line?
A 10 kg box is pulled with a 30 N force and moves at constant velocity. This is the friction force.
What is 30 N
This theorem relates work and kinetic energy.
What is the Work-Energy Theorem?
A hoop, solid disk, and a sphere roll down an incline. The one that reaches the bottom first is this. Why?
What is the Sphere due to lowest moment of inertia
The buoyant force on a submerged object is equal to this.
What is the weight of the displaced fluid?
A car starts from rest and accelerates at 3 m/s2 for 5 seconds. Find the displacement.
What is 37.5 m
Two blocks are connected by a string on a frictionless surface with mass m₁ = 2 kg and m₂ = 3 kg. A 10 N force is applied to m₂. Find the tension in the string between them.
What is 4 N
A 2 kg object moves from rest under a 10 N force for 4 m. Find its final speed.
What is 6.3 m/s
A wheel with moment of inertia 0.4 kg\m2 experiences angular acceleration 3 rad/s2. Find the torque
What is 1.2 N\m
A 5 kg object is fully submerged in water (density 1000 kg/m3) and displaces 4 liters. Find the buoyant force.
What is 39.2 N
A projectile is launched horizontally at 10 m/s from a 20-meter-high cliff. How far from the base does it land?
What is 20.2m
A 3 kg block is on a 30° incline. Find the net force causing it to slide down (neglect friction).
What is 14.7N
A 1.5 kg block slides down a 5 m frictionless incline. Find the work done by gravity.
What is 73.5 J
A disk rotates from rest with angular acceleration 2 rad/s2. After 4 seconds, find its angular displacement.
What is 16 rad
A cube with side 0.2 m floats with half its volume submerged in water. Find the cube’s density.
What is 500 kg/m3
A sprinter accelerates uniformly from rest to 8 m/s in 13 sec. He slows to 3m/s over the next 6 sec. How far did he run?
What is 85m
Two blocks are connected over a frictionless pulley: m₁ = 4 kg on a table, m₂ = 2 kg hanging. Find the acceleration of the system.
What is 3.27m/s^2
A 100 W motor lifts a 20 kg load vertically at constant speed. How high can it lift the load in 10 seconds?
What is 5 m
A solid cylinder (mass = 2 kg, radius = 0.5 m) rolls without slipping at 4 m/s. Find its total kinetic energy.
What is 12 J
Water flows through a pipe narrowing from area 0.01 m2 to 0.002 m2. If the velocity in the wide section is 1 m/s, find the velocity in the narrow section
What is 5 m/s