1-D Motion
A physical measurement described by magnitude alone, without any directional component.
What is scalar?
The force that makes a soccer ball eventually come to a stop.
What is friction?
The equation to calculate momentum?
What is p=mv?
The definition of power.
What is the rate at which work is done?
The speed of a 2.0 kg ball when it falls back to half of its maximum height after it is thrown vertically upward with an initial speed of 8 m/s.
What is 5.66 m/s?
The velocity of an object that travels 1000 meters in 40 seconds.
What is 25 m/s?
Newton's First Law.
What is 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?
The momentum of an object with a mass of 6 kg and a velocity of 7 m/s
What is 42 Ns?
The difference between kinetic and potential energy.
What is Kinetic energy is the energy of motion, while potential energy is stored energy?
The work done by friction if a 10 kg box is pushed 5 m across a horizontal floor by a constant horizontal force of 60 N. The coefficient of kinetic friction is 0.2.
What is 98 J?
The position time graph of an object that moves with constant velocity in the negative direction.
What is...
The acceleration of a 20 kg sled that is pulled with a force of 10 N.
What is 0.5 m/s/s?
The car that experiences the greatest impulse if Car A and Car B have the same mass. They drive down the same road at the same velocity. They both hit the brakes at the same time, but it takes Car B longer to come to a full stop.
What is neither?
The machine that delivers the most power if machine A machine does the same amount of work in half the time as machine B.
What is machine A?
The person that does the most work when lifting 1 10kg weight to the same height if person A does it in 2 seconds and person B does it 2 seconds.
What is neither?
The velocity time graph of an object with negative velocity and is speeding up.
What is...
The normal force experienced by a 67 kg person standing on a table 3 m off the ground?
What is 656.6 N?
The final speed of a 0.45 kg soccer ball kicked straight forward with an initial speed of 2.0 m/s. The player’s foot is in contact with the ball for 0.018 s, and during this time the ball experiences an average force of 420 N forward.
What is 18.8 m/s?
The potential energy of A 60 kg swimmer is about to dive off a 20 m high diving board.
What is 11,760 J?
How far a crate slides before coming to a stop if it has a mass of 12.0 kg and an initial speed of 6.0 m/s. The coefficient of kinetic friction between the crate and the floor is 0.35.
What is 5.25 m?
How high can a person jump if their hang-time is 0.74 seconds?
What is 0.67 meters?
The magnitude of the pulling force required to keep a sled moving at constant speed if the sled has a mass of 15 kg and is pulled horizontally at a constant speed. The coefficient of kinetic friction between the sled and the snow is 0.20.
What is 29.4 N?
What is the average force exerted by a stick on a 0.8 kg hockey puck if the puck is sliding east at 12 m/s when it is struck by a player’s stick, reversing its direction to the west at 8 m/s. The stick is in contact with the puck for 0.05 s.
What is 320 N, west?
The total work done by a 75 kg cyclist pedals up a 12 m high hill at a constant speed of 3 m/s. The cyclist exerts a constant force to overcome both gravity and friction (which does 500 J of work on the cyclist) and reaches the top of the hill in 15 seconds.
What is 9,320 J?
The change in power output of a 1200 kg electric car driving up a 5° incline at a constant speed of 15 m/s (the road has a coefficient of friction of 0.1, and the car’s engine is working continuously to overcome gravity and friction) if the driver doubles the speed of the car.
What is the power must also double?