7.17 physical science assessment

What is a force?

• the PUSH or PULL on an object

• The MOTION an object creates

• The objects HITTING one another

• Going REALLY FAST

Force is measured in units called _______.

• Pounds

• Grams

• Newtons

• Liters

A change to an object's motion is caused by a(n) _______.

• Balanced forces

• Unbalanced forces

• Acceleration

• Velocity

In what direction does gravity pull all objects on Earth?

• toward your feet

• toward Earth's center

• toward the North Pole

• toward the South Pole

When you slide a box across the floor, what force must your push be stronger than?

• Support force

• Friction force

• Gravity

• Air resistance

What is the net force on the box shown below?

• 10 N to the left

• 10 N to the right

• 60 N to the left

• 50 N to the right

______ is a force that opposes motion and acts between two objects that are touching.

• gravity

• balanced force

• unbalanced force

• friction

______ are forces on an object that are equal in size and opposite in direction.

• unbalanced forces

• Newtons

• balanced forces

• friction

Name the missing force.

If there are two forces going in the same direction, how would you find the net force?

• Subtract

• Add

• Neither

• Multiply