8th Grade Physics/Energy Review (Day 1)

You push on a car and it does not move.  What is true about the inertia?

• The inertia is changing
• The inertia of the car is too great 
• The inertia of the person is equal to the car
• There is not inertia because of no movement

Tags

NGSS.MS-PS2-2

m/s² is the unit for.....

• Mass

• Force

• Acceleration

• weight

What Unit do we Measure Force in? 

• Newtons
• Joules
• Force
• Don't know

what is the correct formula for force?

• F=ma

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

F= mass * acceleration

A 20 kg bike accelerates at 10 m/s². what is the force acting upon it?

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons

Tags

NGSS.MS-PS2-2

How much force is needed to accelerate a 2 kg physics book to an acceleration of 6 m/s/s?

• 36 N
• 12 N
• 3 N
• 0.33 N

Tags

NGSS.MS-PS2-2

Which of the following is NOT an example of unbalanced forces?

• a turning car

• a car breaking to a stop

• a car traveling 60 mph constantly

• a car accelerating down a hill

Tags

NGSS.MS-PS2-2

Which of the following is NOT an example of balanced forces?

• a runner moving at a constant speed of 4 m/s

• a runner waiting at the starting line of a race

• a runner slowing down to a stop at the finish line

• a runner jogging in a straight line

Balanced forces CANNOT result in which of the following?

• no changes in motion

• changes in direction

• constant speed

• no motion

What occurs if you increase the Net Force of an accelerating object?

• the object decreases speed

• the object increases speed

• the object's speed in unchanged

• the object moves at a constant speed

Tags

NGSS.MS-PS2-2