Physics Review (Forces and Movement)

"Heavier objects need a larger force to make them move." What Law of Motion is this?

What is the resultant force?

A dog runs with an initial speed of 7.5 m/s on a waxed floor. It slides to a stop in 15 seconds. What is the acceleration?

Dave runs 2000 m in 25 minutes. What is the speed?

The unit of force is...

What is the resultant force?

TRUE OR FALSE: To represent a force, you can use either the point of application (where the force acts), scalar value, and the direction.

Change in speed or velocity over a specific amount of time. What is this?

What Newtons law does this picture represent:

A golf ball accelerates off a tee at 15m/s2, changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?

A bus starts from rest and accelerates to 14 m/s in 4 s. What is the average acceleration of the bus?

The mass of an astronaut is 70 kg on the Moon. What is the mass of the astronaut on the Earth?

How do you calculate average speed?

How fast is the car traveling at 30 seconds?

The gravitational strength on Neptune is 11.0 N/kg. If the weight of a rover is 13,200 Newtons, what is the mass of it?

A spring has a spring constant of 5 N/cm. What is its extension when loaded with 15 N?

A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What's the acceleration?

What is the resultant force?

Which spring has the greatest spring constant? A or B?

A spring has a natural length of 4 cm and when masses are added, its new length is 18 cm. What is the extension?