Definitions P1 test

Acceleration

Impulse

• The product of the resultant force acting on an object and the time the resultant/net force acts on the object

• The mass of the resultant force acting on an object and the time the resultant/net force acts on the object

• The product of the resultant force acting on an object and the time the opposite force acts on the object

• The product of the resultant force acting on an object and the time the resultant/net force acts on the movement

Doppler Effect

• The change in velocity of the sound detected by a listener due to relative motion between the sound source and the listener.

• The change in frequency/pitch of the sound detected by a listener due to Static motion between the sound source and the listener.

• The change in frequency/pitch of the sound detected by a listener due to relative motion between the sound source and the listener.

• The change in frequency/pitch of the sound detected by a listener due to relative motion between the sound source and the listener.

Power

Momentum

• Product of mass and velocity
• Product of mass and acceleration
• Product of force and time
• Product of force and distance

Newton’s Second Law of motion in terms of momentum

• The opposte force acting on an object is equal to the rate of change of momentum of the object in the direction of the net force

• The net (or resultant) force acting on an object is equal to the rate of change of momentum of the object in the direction of the net force

• The net (or resultant) force acting on an object is equal to the rate of change of momentum of the object in the opposite direction of the net force

• The net (or resultant) force acting on an object is less than the rate of change of momentum of the object in the direction of the net force

Work-energy theorem the net work done on an object is equal to the .......

Principle of conservation of linear momentum

• The total momentum of an isolated system remains constant if no external forces act on it
• The total momentum of an isolated system changes if no external forces act on it
• The total momentum of an isolated system remains constant only if external forces act on it
• The total momentum of an isolated system changes even if external forces act on it

Free fall

• A state of rising upwards

• A state of floating in space
• Motion of an objects under the influence of the gravitational force only.

• A state of remaining stationary in mid-air

Newton's 1st Law of motion

• An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force
• Force equals mass times acceleration
• For every action, there is an equal and opposite reaction
• Gravity is a force that attracts two bodies toward each other