Physics S1 Review

What is kinetic energy?

• Energy of an object due to it's velocity
• Energy of an object due to it's position in a gravitational field
• Energy of an object due to it's mass

What is potential energy?

• Energy of an object due to it's velocity
• Energy of an object due to it's position in a gravitational field
• Energy of an object due to it's mass

What happens to potential energy of an airplane after it lands on the ground?  

• It decreases
• It increases 
• It stays the same

What happens to the kinetic energy of a car as it accelerates?

• It increases
• It decreases
• It remains the same

What is the difference between work and power? 

• Work does not take into account the time 
• Power does not take into account the time
• Work is the same as power

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

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

The force that acts on an object to stop its motion.

• Speed
• Friction

Forces that have a net force that is not zero ( object will move).

• Balanced force
• Unbalanced force

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

What is the net force?

• 400 N Up
• 400 N Down
• - 400 N Down
• 800 N Down