The force acting on a cart is doubled, the acceleration
a. It quadruples
b. It doubles
c. It halves
d. It quarters
What is b. doubles ?
100
** Daily Double **
A 3 kg brick accelerating at 7 m/s/s hit a window solve for the force of the brick on the window.
100
The units for acceleration are
What are m/s/s?
100
**Daily Double **
Kinetic energy of an object depends on the mass of the object as well as
100
This happens to a ball rolling on a frictionless surface.
What is the ball keeps rolling forever?
200
Newton’s First Law of Motion is referred to as ________ .
a. F=ma
b. Inertia
c. Gravity
d. For every action there is an equal and opposite reaction
What is b. Inertia?
200
A 20.4 kg object on Earth is pushed a distance of .75m, solve for joules of work.
What is 153 Joules (J)?
200
The units for weight
What are Newtons?
200
Energy of action
What is kinetic energy?
200
Direction that a frictional forces exerts on a moving object.
What is a force in the opposite direction of the motion?
300
According to the formula F=ma, force and acceleration are ________________ .
a. Directly proportional
b. Indirectly proportional
c. Not related
d. The same
What is a. directly proportional?
300
Brian, who weighs 500 Newtons, was carrying a surfboard with a mass of 5 kg and a wetsuit with a mass of 2 kg. The total mass of Brian, the surfboard, and the wetsuit.
What is 57 kg?
300
The units for velocity
What are m/s?
300
Amount of inertia an object has depends on its
What is mass?
300
A 100 Newton force and a 25 Newton force act on a table in opposite directions. The net force on th object is
What is 75 Newtons?
400
The point at which air resistance is equal to the acceleration of a falling object is called ____________ .
a. Acceleration due to gravity
b. Terminal velocity
c. Momentum
d. This cannot happen
What is b. terminal velocity?
400
Robbie started at rest from the front door of the school and after 3 seconds, was running 8 m/s. Calcualte Robbie's acceleration.
What is 2.67 m/s/s?
400
The units for work are
What is joules? (J)
400
An arrow in a bow has 70 J of potential energy when the arrow is held before it is shot. The total energy of the system is
What is 70J?
400
The equation for work, the SI units for work.
What is Force x distance = work? What is Joulues (J) ?
500
A bowling ball has a mass of 7.0 kg and a force of 68.6 N is applied to it, the acceleration would be ________________________ .
a. 9.8 m/s2
b. 480.2 m/s2
c. 0.10 m/s2
d. Need more information
What is a. 9.8m/s2?
500
A person skating has a mass of 100,000 g and skates with a force of 255N, solve for her acceleration?
What is 2.55 m/s/s ?
500
The units for energy
What are joulues? (J)
500
The potential energy of a roller coaster at it's starting point is equal to the...
What is total energy of the system?
500
The formulas for Potential Energy, Weight, and Force.
What is PE = mgh
Weight = mass * gravity
Force = mass * acceleration