Finals

Think about pushing a shopping cart and a car. If you apply the same amount of force to both, the shopping cart will travel fast, but the car will hardly move. To move the car yo would need a larger force. Which of Newton's laws is being represented?

• 1st

• 2nd

• 3rd

What Unit do we Measure Force in?

• Newtons

• Joules

• Force

• Kilograms

What force slows objects down and keeps them from moving?

• Acceleration

• Gravity

• Friction

• Net Force

The momentum of an object depends upon the object's ___________&_____________.  

• size and shape
• mass and speed
• mass and veloctiy
• mass and energy

The equation to calculate momentum is

• p=mv
• p=1/2mv²
• p=mgh
• p=mg

What is the unit for velocity?

• m/sec
• kg/sec
• kg/m
• kg m/sec

A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball. 

• 55 kg*m/s
• 100 kg*m/s
• 250 kg*m/s
• 500 kg*m/s

What is Newton's First Law known as? The Law of

• Friction
• Mass
• Inertia
• Gravity

Because of inertia, a resting object ________.

• will remain at rest

• will move at a constant speed

• will eventually move

• is unbalanced

What is the formula for force?

• F=M/A
• F=A/M
• F=M*A
• F=M*F