english for physics(200-225)

With an ammeter it is measured

• Amperage

• Voltage

• Power

• Charge

• Work current

Electric current in metals is

• ordered motion of free electrons

• ordered motion of free protons

• chaotic motion of free protons

• chaotic motion of free electrons

• free motions of free electrons

In order for the battery to become a source of electric current, it must be

• charge

• heat up

• chill

• deform

• trusts

Voltage unit

• Volt

• Ampere

• Pendant

• Joule

• Watt

An electrometer is an instrument for measuring

• Charge

• Voltage

• Power

• Amperage

• Work current

Considering that the electron charge is 1.6×10-19C, determine how many electrons pass through the cross-section of the conductor in 6 minutes at a current of 0.4 A.

• 90×10 19

• 9×10 -22

• 90×10 -19

• 4,5×10 -19

• 4,5×10 19

How do we calculate work done?

• work done = force x distance moved

• work done = mass x distance moved

• work done = force ÷ distance moved

• work done = oscillation x force

• work done = force x time

What are the units for work done?

• Joules

• Newtons

• Watts

• m/s2

• Amper

During a pull-up, a 90kg man raises himself by 80cm. Calculate the work done in a single pull-up.

• 720 Joules

• 1,125 Joules

• 72,000 Joules

• 112,500 Joules

• 72 Joules

A push or pull is

• Force

• Mass

• Inertia

• Gravity

• Acceleration