Canada uses a 120-volt and 60-hertz electric supply, which is the same as the United States. Most of North and South America uses the same two types of plugs, including one grounded and one that is not grounded.
Many countries use different plugs, voltages and polarity. In the United States, the law requires every electronic device specify the required voltage. Most devices fall into either 130 volts or 250 volts. Traveling to a 250-volts country and using a 130-volts device can cause overheating, melting or even fire. It is always advised to check official websites to make sure electronics are compatible in the country one is visiting.