If a car accelerates on a level road, it gains

• chemical energy
• potential energy
• kinetic energy
• light energy

Which is a unit of work or energy

• netwon
• watt
• meter
• joule

which can do more work? 1 joule of heat energy, or 1 joule of sound energy.

• they do the same work
• they do no work
• sound energy
• heat energy

what energy does the object in the picture have the most of?

• potential energy

• kinetic energy

• electric energy

• heat energy

what energy does the object in the picture have the most of?

• kinetic energy

• potential energy

• electric energy

• heat energy

Which of these forces does NOT oppose motion?

• Drag
• Thrust
• Friction
• Air resistance

If an unbalanced force is acting on an object is increased, the object will

• remain at constant speed
• accelerate more
• remain still
• remain at constant velocity

Which is a unit of force?

• newton
• gram
• m/s
• (m/s)/s

If the same force is applied to each object, which will have the greatest acceleration?

• 
• 
• 
• 

Which demonstrates balanced forces?

• a bus acceleration around a curve
• a kite falling to the ground
• a bicycle leaning against a building
• wind slowing down a runner