Year 9 Physics Exam Revision

The formula for Work done?

• W=F_xD
• W=F/D
• W=Fm
• W=Am

The unit for energy?

• Joule
• Jail
• Newton
• Watt

Example of a renewable power source

• geothermal
• coal
• oil
• nuclear

When light strikes a plane mirror

• it forms a virtual, upright image with magnification = 1
• it forms a virtual, upright image with magnification < 1
• it forms a real, upright image with magnification = 1
• it forms a virtual, inverted image with magnification = 1

A car at rest accelerates at 1.5 ms^-2 for 10 seconds. It will reach a final speed of

• 15 ms^-1
• 6.7 ms^-1
• 1.5 ms^-1
• 67 ms^-1

Tags

NGSS.HS-PS2-1

The definition of electric current

• the rate of flow of charge
• the rise of charge per unit 
• the energy per unit time
• the amount of resistance over time

The formula that relates resistance in circuits to voltage and current

• R= V/I
• V+R=I
• I-R-V=0
• V=I/R

The graph shows an object that is

• maintaining a constant speed
• accelerating
• decelerating
• stopped

The voltage in a series circuit is 

• divided between components
• equal across all components
• equal to zero
• flowing through cells from negative to positive

Electric current in parallel circuits will

• divide at the junctions and then combine to return to the battery
• remain the same everywhere in the circuit
• add to the voltage
• subtract from the resistance