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Grade 11 Magnetism and Electricity
If you want to increase the current in a circuit, and you have two 9V batteries, you should
1. connect the batteries in series because it will increase the voltage to 18V
2. connect the batteries in parallel because it will decrease the voltage but provide more amperes
3. connect the batteries in series because it will decrease the voltage but provide more amperes
4. connect the batteries in parallel because it will increase the voltage to 18V
Grade 11 Waves and Sound
The Doppler Effect causes a change in perception of the pitch of source of sound because in the same period of time
1. if the distance between source and observer increases, the waves must spread out
2. if the distance between source and observer decreases, the waves must be compressed
3. the same number of waves must fit between the source and the observer
4. All of the above are correct.
Grade 11 Forces and Motion
When an object is in free fall
1. its speed stays the same
2. it decelarates
3. it accelerates
4. none of the above
Grade 11 Forces and Motion
A scalar has
1. magnitude and direction
2. velocity
3. only direction
4. only magnitude
Grade 11 Light and Optics
Grade 11 Forces and Motion
Grade 11 Nuclear Physics
The best way to explain the contribution Einstein's mass-energy equivalence theory made to the study of nuclear physics is that it
1. relates energy, mass, and the speed of light.
2. shows scientists how mass can be converted into pure energy.
3. describes how much mass is associated with a given amount of energy and how much energy it takes to create a given amount of mass.
4. showed how all matter had a rest energy.
Grade 11 Forces and Motion
The speed at any given time is called the
1. velocity
2. average speed
3. instantaneous speed
4. all of the above
Grade 11 Forces and Motion
When no horizontal force acts on a projectile, the horizontal velocity
1. remains constant
2. increases
3. decreases
4. equals zero
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