PHYSICS 2SW EXAM REVIEW Part 2

If you exert a force of 50 Newton’s on a door, and the door doesn’t move, then what force is the door exerting on you?

• 50 N

• 50 F

• 100 N

• 490 N

According to Newton's First Law of Motion, a net force of zero can result in either an object motionless OR having

• momentum

• equilibrium

• acceleration

If you push a box towards the left, the friction force that the floor exerts on the box will be directed towards where?

• right

• left

• upwards

• downwards

An unbalanced force will result in what?

• motion

• equilibrium

• no motion

Which unbalanced force acting on a 4.0 kilogram object will result in an acceleration of 10 m/s2 ?

• 4 N

• 40 N

• 39.2 N

• 392 N

When a force of 100 Newton’s acts on a mass of 5 kilograms, the resulting acceleration will be

• 20 m/s²

• 500 m/s²

• 0.05 m/s²

A force of 20 Newtons causes an object to accelerate at 20 m/s², what is the mass of the object?

• 1 kg

• 400 kg

• 196 kg

• 1 N

Consider the diagram. If the box is at rest, then that means that the net force of the object is equal to ____ Newtons.

• 0

• 9.81

• 40

• 6.67 x 10^-11

The inertia of an object depends directly on the objects

• mass

• inertia

• acceleration

What is the magnitude of the gravitational force between two objects that have masses of 2.5 kilograms and 10 kilograms respectively, and are separated by a distance of 5.0 meters?

• 6.67 x 10^-11

• 3.34 x 10^-10

• 0.667