Waves
Motion
Acceleration
Electricity
kinetic
100

In general, the higher the frequency of the interfering waves that form a standing wave 

The greater the number of nodes of nodes and antinodes in the standing wave

100

What is the sl unit of displacement?

Meter

100

what is acceleration?

The rate of change of the velcity over time

100

What is the unit of electrical power?

watt

100

What is kinetic energy?

The energy of motion

200

If a string fixed at both ends resonates in its fundamental mode with a frequency 150Hz, at which of the following frequencies wiil it not resonate? choose two answers.

600Hz

200

which of the following is a vector quantity?

Displacement

200

What are the the three ways a object can accelertate

Speed up slow down and change direction

200

What is the unit of electrical charge?

coulomb

200

What is the equation for kinetic?

KE=1/2mv2

300

A computer simultaneosly plays sounds of 525 Hz and 535 Hz. what beat frequency will be heard by nearby observers?

10Hz

300

If a body moves in a straight line without changing direction,which of the following is true ?

Distance=Displacement

300

What is the formula used to solve for acceleration

a=Vf-Vi/t

300

Which type of material has the highest electrical  conductivity? 

superconductor

300

Does moving car have kinetic energy?

yes, a movingcar possesses kinetic energy b`ecause it is in motion.

400

The diagram above depicts a standing wave in a rope. which harmonic is illustrated?

3rd

400

A body moving with uniform velocity has?

Zero acceleration

  

400

What des Vf and Vi and stand for

Vf=final velocity                                                                              Vi=initial velocit

400

Which instrument is used to measure electrical resistance?

ohmmeter

400

If the velocity of a body is doubled its kinetic energy will

become 4 times

500

The diagram above depicts a standing wave in a rope which is the wavelength of the depicted wave? 

40cm

500

The slope of a displacement- time graph represents?

Velocity 

500

When does acceleraion happen?

When an object's velocity changes.

500

What is the electrical term for the opposition to the flow of electric current in a circuit?

Resistance

500

A car with a mass of 1,600kg has a kinetic energy of 125,000j. how fast is it moving? (12,5m/s)

12.5 m/s=v

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