Review for BM2

Motion is a change in

• time

• speed

• velocity

• position

Which point on the roller coaster has the most POTENTIAL energy?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-2

What must occur to a shopping cart at rest to make it roll forward?

• Apply a force to overcome gravity

• Balanced forces must act on the cart

• Apply an unbalanced force to push or pull it forward

• Apply an unbalanced force smaller than friction

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

In order to balance the see saw...

• Remove the down force of the arrow

• Make the down force of the arrow go up

• The down force of the arrow must equal the weight of the cylinder

• The down force of the arrow must be greater than the weight of the cylinde

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Inertia depends on

• force

• mass

• velocity

• motion

Tags

NGSS.MS-PS2-2

Why does the car slow at the flat area when it gets to the bottom of the hill?

• Gravity acting on the car increases

• Gravity acting on the car decreases

• The forces on the car are NOT balanced

• The forces on the car ARE balanced

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

Why does an object in motion stay in motion unless acted on by an unbalanced force?

• Forces are what stop & start motion

• Balanced forces cannot exist in nature

• Matter is always in motion

• Once started motion continues to accelerate

Gravity exists between any two objects with mass. Why don't people feel a gravitational force with other people?

• People don't have gravitational force

• The 2 forces cancel

• Gravitational force of people is too small compared to EARTH

• There are so many people we balance each other out

What energy transformation occurs when heating a meal in a microwave oven?

• electrical --> electromagnetic -> chemical

• chemical --> thermal--> electromagnetic

• electrical --> electromagnetic -> thermal

• chemical --> electromagnetic -> chemical

Tags

NGSS.MS-PS1-4

How are potential and kinetic energy related?

• As Potential increases, Kinetic increases

• As Potential increases, Kinetic decreases

• As Potential increases, Kinetic stays the same

• As Kinetic increases, Potential increases

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5