Grade 7 - Pressure and Forces

_____________ is the amount of force pushing on a certain area.

• weight

• mass

• pressure

If you keep the size of the force the same, for a large area, the pressure will be ________

• higher

• lower

• same

Which formula is used to calculate pressure?

•  $pressure\ =\ \frac{force}{area}$  

• pressure = force x area

•  $pressure\ =\ \frac{area}{force}$  

What is the unit of pressure?

• newton

• joules

• pascal

If you keep the area the same, for a larger force, the pressure will be _________

• lower

• higher

• same

All stationary (Still) objects have __________ forces on them.

• unbalanced

• balanced

• high

If forces on an object are unbalanced, it will _______

• make the object to move or change direction.

• make it move at same speed.

• it will remain still.

Tags

NGSS.MS-PS2-2

Forces acting on an object are said to be balanced, when

• the forces are equal in size and are acting in opposite direction.

• the forces are equal in size and are acting in same direction.

• the forces are different in size and are acting in opposite direction.

The head of an arrow represent the __________ of force.

• strength

• length

• direction

The sum of all forces acting on an object is called

• unbalanced force.

• balanced force.

• resultant force.

Tags

NGSS.MS-PS2-2