Motion and Forces
An object at rest remains at rest, or if in motion, remains in motion at a constant speed unless acted on by a net external force.
The energy contained in the chemical bonds of molecules
What is chemical potential energy?
A disturbance in space and time that carries energy from one place to another.
What is a wave?
The name given to charge that is flowing or moving
What is the incident ray?
For every action force there is an equal and opposite reaction force
What is Newton's Third Law?
This type of energy depends on an object's mass, and how high up it is.
What is gravitational potential energy?
With this type of wave, the oscillation is parallel to the direction of propagation.
What is a longitudinal wave?
The voltage across a circuit is equal to the current in amps multiplied by the resistance in ohms.
What is Ohm's Law?
An image located on the same side of a mirror as the object.
What is a real image?
The acceleration of an object is proportional to the force acting on it, and inversely proportional to its mass.
What is Newton's Second Law?
An object's momentum is dependent upon which variables?
Its mass and velocity.
The number of wave crests or troughs that pass a particular point in one second.
What is the frequency of a wave?
In a DC circuit describe what happens to the current and voltage through and across resistors in series.
Current is the same across both resistors, voltage splits depending on individual resistances.
An image located on the same side of a lens as the object.
What is a virtual image?
A truck is moving at constant velocity of 10 m/s when the driver hits the brakes and comes to a stop 5 seconds later. What is the acceleration of the truck, assuming the acceleration is uniform?
-2 m/s2
How much work is done lifting a 1 kg mass 10 m off the ground?
98 Joules
The amount of time taken for one wave cycle (complete crest and trough)
What is the wave period?
What is the equivalent resistance of two resistors wired in parallel, both 10 ohms?
5 ohms
With a concave mirror, describe the image size and position if the object lies less than the focal distance from the mirror.
Virtual image, larger than object and upright.
What is the weight of a brick with a mass of 500g?
4.9 N
When a small mass moving in a straight line collides with a large mass which is at rest, what happens to the two objects and the total momentum after the collision if it is perfectly elastic?
The small mass bounces back in the opposite direction, the large mass moves off in the original direction of motion; total momentum is conserved.
What is the velocity of wave with a wavelength of 5 cm and a frequency of 100 Hz?
5 m/s
When a current flows in a coil of wire the strength of the magnetic field produced is proportional to the current and the number of turns in the wire.
What is Ampere's Law?
With a converging lens, describe the image if the object is further away than the lens focal point.
Real and inverted.