1.D Motion
2D Motion
Newton's Laws
Momentum
Energy
100
If an object has a constant velocity, what can be said about its acceleration?
It is also zero
100
Which of the following measurements is NOT a Scalar?
Displacement
100
Newton's First Law
What is an object at rest remains at rest, and an object in motion remains in motion at constant speed unless acted on by an unbalanced force
100
One car with a mass of 400kg is traveling east at 20ms and collides with a car of mass 800kg traveling west at 15ms. Assuming the collision is completely inellastic, what is velocity of the first car after the collision?
3.33 m/s west
100
Kinetic Energy is defined as
Energy of motion
200
What is the difference between speed and velocity?
Speed Is a scalar quanity while velocity is vector
200
For a projectile, which velocity remains constant as long as air resistance is ignored?
Horizontal
200
If the car is traveling around a curve of 50m radius at a velocity of 10 m/s, what is the centripetal acceleration of the car?
2m/s/s
200
Egg A is dropped from a height of 1m onto the floor. Egg B is dropped from a height of 1m into a bucket of water. Which statement correctly describes why Egg B does not break?
Egg B experiences less force over a longer time
200
What are the two types of Mechanical Energy? (ME)
Kinetic and Potential
300
Negative displacement is represented by this
An object moving backwards.
300
The horizontal acceleration of a projectile is ALWAYS
Zero
300
These arrows represent Normal force and weight.
What is "N" and "Mg"
300
What is an object's change in momentum equal to?
the impulse acting on the object
300
A 70 kg runner has a velocity of 5 m/s. Her kinetic energy is
875 J
400
The SI unit for velocity
m/s
400
A golf ball resting on the ground is struck by a golf club and given an initial velocity of 50 m/s at an angle of 30 degrees above the horizontal. The ball heads towards a fence 12 meters high at the end of the golf course, which is 200 meters away from the point at which the golf ball was struck. Neglect air resistance on the golf ball. What is the horizontal component of the velocity right after the gold ball is stuck
43.3 m/s
400
If the car of 75kg is traveling around a curve of radius of 50m at a velocity of 15 m/s, what is the centripetal force of the car?
337N
400
Two sumo wrestlers hit and miraculously come to a stand still. One wrestler was 200kg and traveling at a velocity of 2.3ms at the instance of collision. If the other wrestler was traveling at 2.9ms, what is his mass
159kg
400
An object has a mass of 100 kg moving at 5 m/s. What is the linear momentum of the object?
500 kg m/s
500
If a 15kg ball takes five seconds to strike the ground when released from rest, at what height was the ball dropped?
125m
500
A golf ball resting on the ground is struck by a golf club and given an initial velocity of 50 m/s at an angle of 30 degrees above the horizontal. The ball heads towards a fence 12 meters high at the end of the golf course, which is 200 meters away from the point at which the golf ball was struck. Neglect air resistance on the golf ball. What is the horizontal component of the velocity right after the gold ball is stuck
43.3 m/s
500
What is another name for the first law of motion?
Law of Inertia
500
Calculate the momentum of a 12ookg car with a velocity of 25m/s
30,000 m/s
500
A bodybuilder is in the midst of a an intense training session. He is currently bench pressing a bar with a mass of 250kg. If he does six reps of this mass and his arms are 0.75m long, how much work has been done on the bar between the time the bar was removed from its rack and placed back on the rack?
0J