Contact Forces Review

Normal force is always __________________ to the surface supporting an object

• prependicular

• sideways

• above

• less than

The force that resists sliding between two touching objects is called _____________________

• normal force

• contact force

• non-contact force

• friction

Any push or pull on an object.

• force

• velocity 

• inertia

• momentum

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The force that opposes motion between two surfaces in contact with each other.

• inertia

• friction

• momentum

• gravity

You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.

• 20N 

• 40N 

• 10N 

• 70N

Tags

NGSS.MS-PS2-1

The picture shows

• balanced forces

• unbalanced forces

• acceleration

• movement

If two objects have the same mass, the object acted on by a _______  ________ will have the greatest change in speed.

• smaller force

• greater force

• greater velocity

• smaller velocity

Tags

NGSS.MS-PS2-2

This force causes objects to slow down, speed up, or change direction. __________________

• Unbalanced Force

• Balanced Force
  Balanced

• Strong Force

• Equal Force

Tags

NGSS.MS-PS2-2

If a force is applied in the same direction an object is moving, the object will _____________.

• Speed Up

• Slow Down

• Change Direction

• Stop

Tags

NGSS.MS-PS2-2

Which law explains why when you put a book on a table the table pushes on the book

• 3rd law

• 4th law

• 1st law

• 2nd law

Tags

NGSS.MS-PS2-1