grade 11 physics test

A stone thrown from the top of a tall building follows a path that is:

• circular
  

• hyperbolic
  

• parabolic
  

• a straight line
  

Acceleration is always in the direction:

• of the displacement
  

• of the initial velocity
  

• of the final velocity
  

• of the net force
  

The inertia of a body tends to cause the body to:

• resist any change in its motion
  

• speed up
  

• slow down
  

• fall toward Earth
  

A vector of magnitude 20 is added to a vector of magnitude 25. The magnitude of this sum
might be:

• 3

• 12

• 47

• 50

Two blocks, weighing 250 N and 350 N, respectively, are connected by a string that passes over
a massless pulley as shown. The tension in the string is:

• 210N

• 290N

• 410N

• 500N

Which of the following bodies has the largest kinetic energy?

• Mass 3M and speed V
  
  

• Mass 3M and speed 2V
  

• Mass 2M and speed 3V
  

• Mass M and speed 4V

The zeroth law of thermodynamics allows us to define:

• work
  pressure
  C. temperature
  D. thermal equilibrium
  

• pressure
  

• temperature
  

• thermal equilibrium

A coulomb is the same as:

• an ampere/second

• an ampere second

An electrical insulator is a material:

• containing no electrons
  

• through which electrons do not flow easily
  

• that has more electrons than protons on its surface
  

• cannot be a pure chemical element

Fission fragments usually decay by emitting:

• alpha particles
  

• electrons and neutrinos
  

• positrons and neutrinos

• only neutrons