Forces LT5

Forces LT5 - Newton's 2nd Law Calculations

Multiple Choice

DAILY REVIEW

Which object has greater inertia?

Multiple Choice

DAILY REVIEW

An Astronaut is moving through space at a rate of 5 m/s. Does the astronaut need a jet pack to keep moving at this speed?

• yes

• no

Open Ended

Explain your answer using the terms "inertia" and "Newton's 1st Law of Motion".

Multiple Choice

Daily Review

David and Peter are arguing in the cafeteria. David says that if he throws his jello with greater speed it will have greater inertia. Peter argues that inertia depends on mass not speed. Who is right?

• David

• Peter

Open Ended

Explain your answer using the terms "inertia" and "Newton's 1st Law of Motion".

What net force is needed for a 1600 kg automobile to accelerate at a rate of 2.0 m/s2?

F = m x a

Open Ended

What is the acceleration of a 58-kg boy on a skateboard if he is pushed forward with a force of 15 N and the opposing force of friction is 4 N?

F = m x a

Multiple Choice

If you hit a softball and a bowling ball with the same amount of force, which will accelerate faster?

• softball

• bowling ball

• same

Open Ended

Explain your answer.....

Poll

Can you calculate force, mass, and acceleration of an object using Newton's 2nd Law of Motion?

• Yes, it's easy for me.

• I kind of understand how to but could use some more practice :)

• No, I don't get it at all!