Motion
The change in position of an object.
One-half the product of the particle’s mass m and the square of its speed v. Describes the energy of motion.
What is Kinetic Energy?
The net work done one a particle equals the change in a particle's kinetic energy.
What is the Work Energy Theorem?
The force that surfaces exert to prevent solid objects from passing through each other.
What is normal force?
The rate at which work is done
What is power?
Displacement between two points over the time between two points.
What is average velocity?
The energy stored as a result of applying a force to deform an elastic object
What is elastic potential energy?
Mass in motion. All objects have mass; so if an object is moving, then it has ___.
What is momentum?
A 15 kg box is resting on a flat table. Calculate the normal force acting on the box.
What is 147 newtons?
What is 120 watts (W)?
A coyote walks east 2 km, then turns around and walks back west 3 km. If this trip takes 1.5 hours, what is the coyote’s average speed?
What is 3.33 km/h?
A car with a mass of 1200 kg is moving at a speed of 25 m/s. Calculate its kinetic energy.
What is 375,000 joules?
The product of displacement (x) and the component of the Force (Fx) applied in the same direction as that displacement.
What is work?
Force that resists motion when the surface of one object comes in contact with the surface of another.
What is friction?
A person lifts a 15 kg object vertically to a height of 3 meters in 5 seconds. Calculate the power exerted. (Use g = 9.8 m/s2).
What is 88.2 watts (W)?
A coyote walks east 2 km, then turns around and walks back west 3 km. If this trip takes 1.5 hours, what is the coyote’s average velocity?
–0.67 km/h westward.
A spring with a spring constant of 200 N/m is compressed by 0.1 meters. Calculate the elastic potential energy stored in the spring.
What is 1 Joule?
A 5 kg object is moving at a velocity of 10 m/s. Calculate its momentum.
What is 50 kg·m/s?
A 10 kg box is sliding on a surface with a coefficient of kinetic friction of 0.3. Calculate the friction force acting on the box.
What is 29.4 newtons?
What is 200 N/m?
A car slows from 15 m/s to 10 m/s by an acceleration of 4 m/s^2. How much time did it take to slow down?
What is 1.25 seconds?
A 2 kg object is dropped from a height of 15 meters. What is its speed just before it hits the ground? (Ignore air resistance.)
What is 17.15 m/s?
A person lifts a 10 kg object vertically to a height of 2 meters. Calculate the work done against gravity. (Use g=m/s2).
What is 196 joules?
A 20 kg box is placed on an inclined plane at an angle of 30°. Calculate the normal force acting on the box. (Use g=9.8 m/s^2)
What is 169.4 newtons?
A spring with a spring constant of 300 N/m is stretched by 0.1 meters. Calculate the force exerted by the spring.
What is 30 newtons?