Kinematics
Force
Work Power Energy
Momentum Impulse
Electricity
100
What is the average velocity of the car?
15.0 m/s
100
Which object has the greatest inertia?
D = 16.0 kg
100
How much power is needed to do 40 Joules of work in 5 seconds?
8.0 W
100
What is the momentum of a 0.20-kilogram baseball moving at 10 m/sec
2.0 kgm/s
100
When an electric charge is 'shared' between two objects so they have the same charge then we call this...
conduction
200
If an object travels 20 m East and then 30 m South and then 20 m East again. What is the displacement?
50.0 m
200
What is the normal force on the block?
15.0 N up
200
How much work is done if a 10 kg mass is pulled 2 meters by a force of 30 N?
60.0 J
200
A person in a car crash experiences an impulse of 400 N-s. If the Force was 200 N, what must the time of impact be?
2.0 s
200
when a positively charged object is attracted to another object we know that other object has a ___ charge
negative or neutral (yes you need to give both)
300
If a sprinter accelerates from rest at a constant rate of 2.0 m/s2, how fast will she be running after 4.0 seconds?
8.0 m/s
300
Which of Newton's laws explains why it's hard to stop an object in motion?
1st law
300
What is the potential energy of a 35 kg cart at the top of a 185 m high hill?
63,455.0 J
300
A 2.0 kg body has a velocity of -6.0 m/s. How long will it require to stop if a breaking force
of 2.5 N acts on it?
4.8 s
300
What is the current in a copper wire that has a resistance of 2 ohms and is connected to a 9 volt battery?
4.5 A
400
What is the total time a ball in will stay in the air if it's initial horizontal velocity is 30 m/s and it's vertical velocity is 20 m/s?
4.1 s
400
Two forces F1 and F2 are applied to a block on a frictionless horizontal surface as shown. If the magnitude of the block’s acceleration is 2 m/s2, what is the mass of the block?
5.0 kg
400
3 kg is moving with a velocity of 3 m/s. What is that object's kinetic energy?
13.5 J
400
What is the difference between an elastic and inelastic collision?
elastic bounces off, inelastic sticks together
400
If a light bulb burns out, and all the lights go out, what kind of circuit is it?
Series
500
How far horizontally will a ball go if it's initial horizontal velocity is 30 m/s and it's vertical velocity is 20 m/s?
123 (122.4)m
500
If you cut the distance between two orbiting planets in half, what happens to the gravitational force
22 x F
500
If a ball of 5 kg hits the ground with 510 J of kinetic energy, what was it's maximum height when dropped?
10.4 m
500
A car with a mass of 1350 kg, moving at a speed of 31 m/s, strikes a stationary 2170 kg
car. !f the cars remain together after the crash, compute the speed of the wreck.
11.9 m/s
500
A 4 C charge and a 5 C charge attract each other and they are 3 m apart. What force attracts them?
2.0x1010 N