Impulse
Work
Energy
Wave
Electrostatics
Electric Currents
100
A force of 20 N is applied to a soccer ball for 0.5 seconds. What is the impulse?
A. 5Ns
B. 10 Ns
C. 20 Ns
D. 40 Ns
What is B. 10 Ns
100
How much work is down when a 15N force moves an object of 4m?
A. 19J
B. 60J
C. 11J
D. 45J
What is B. 60J
100
What type of energy does a moving car have?
A. Thermal
B. Chemical
C. Potential
D. Kinetic
What is D. Kinetic
100
This is a type of wave
1. Parallel 2. Perpendicular
3. Transversal. 4. Longitudinal
What is 4?
100
Balloon Boy moves a coke using his balloon. He uses this method of charging
1. Induction 2. Friction 3. Conduction
What is friction?
100
The unit of electric current
A. Volt B. Ohm.
C. Ampere. D. Watt
What is C?
200
Impulse is equal to:
A. Force x Distance
B. Mass x Acceleration
C. Force x Time
D. Velocity x Time
What is C. Force x Time
200
Which unit is used for work?
A. Newton
B. Joule
C. Watt
D. Meter
What is B. Joule
200
Which equation represents gravitational potential energy?
A. KE = 1/2mv^2
B. PE = mgh
C. W = fd
D. p = mv
What is B. PE = mgh
200
Sound waves move faster in this type of matter.
1. Liquid 2. Solid
3. Plasma 4. Gas
What is solid?
200
This particle carries a negative charge.
1. Electron 2. Neutron
3. Proton 4. Nucleus
What is electron?
200
This material is the best conductor of electricity.
A. Copper B. Plastic.
C. Wood D. Copper
What is D?
300
A baseball experiences a force of 35 N for 0.2s. Calculate the impulse.
Impulse = Force x Time
J = 35 x 0.2
What is 7Ns
300
A student pushes a box with a force of 25N across 6m. Calculate the work done.
Work = Force x Distance
What is 150J
300
Find the kinetic energy of a 4kg object moving a5 5m/s.
KE = 1/2mv^2
What is KE = 50J
300
An ocean wave travels at 365.5 meters in the span of 20 seconds. Calculate the speed of the wave.
What is 18.275m/s?
300
Charge A has 2.1 C and Charge B has 4 C with a distance of 3m. Calculate the electric force and type
What is 8.4 * 10^8N repulsion
300
A resistor has a resistance of 5 Ω and a current of 2 A flows through it. Find the voltage.
What is 10 volts?
400
A 2kg object changes velocity from 3 m/s to 8 m/s. Find the impulse.
Impulse = Change in momentum
J = m(vf - vi)
What is 10Ns
400
A machine does 500J of work moving an object 10m. What force was applied?
W = FD
What is F=50N
400
A 3kg book is lifted 2m off the ground. Calculate gravitational potential energy. (g = 9.8 m/s^2)
PE = mgh
What is PE = 58.8J?
400
A sound wave produces 387 Hz and a wave length of .94 meters. Find the speed of sound.
What is 363.78m/s?
400
Charge A has 2 C, the distance is 11m, and the electric force is 7380165.29N. The charge B
What is 3 C
400
A device uses 78 V and has a current of 6 A. Find the resistance
What is 13Ω?
500
During a car crash, airbags increase the time it takes for passengers to stop moving. The reason of less injuries?
What is increasing the stopping time decreases the force of impact because impulse is spread over a longer time?
500
You carry a backpack while walking across the classroom. The work of the backpack in the physics sense.
What is no, the force on the backpack is upward while the motion is horizontal, so no physics work is done?
500
The reason roller coaster have the most potential energy at the top of a hill
What is gravitational potential energy increases with height, so the coaster stores the most energy at the highest point?
500
Lil Jerry hears a siren that produces 567 hertz. The car slowly drives away 756 meters in 6.7 seconds then stopped. However, Lil Jerry sprints to the car at 300 meters in a minute. He wants to know the observed frequency of the car. Help Lil Jerry by finding the frequency and round to the nearest hundredth.
What is 1024.49Hz?
500
Big Jerry hits a metal ball with a rod. Big Jerry wants to know how much charge was transfered and what type transfering occured He knows that the new electrical field is now 2.7 * 10^-8N, the distance is 4m and one of is 16 C. Help him out
What is -3 and conduction?
500
Tiny Jerry wants to how many volts are in his Security Cameras and that has a resistor of 8Ω and current of 30 A and why if one camera goes down the others don't. Help him.
What is a parallel circuit and 240 V?