Forces

1. Which is NOT a unit of force?

• 1. Dyne

• 1. Joules

• Newton

• 1. Pound

1. What refers to how large or strong is the force?

• 1. magnitude

• 1. line of action

• 1. velocity of the object

• direction of the force

1. What force is always directed opposite to the motion of an object?

• 1. Friction

• 1. Gravitational

• 1. Magnetic

• 1. Tension

1. What force pulls an object back to the Earth?

• Applied

• 1. Gravitational 

• 1. Magnetic 

• Tension

1. Which surface would be easiest for a bicycle to move?

• 1. Sand

• 1. Grass

• 1. Muddy road

• 1. Concrete road

1. What type of forces holds between two celestial bodies like the Sun and Earth? 

• 1. Applied

• 1. Gravitational

• 1. Magnetic

• 1. Tension

1. What force acts perpendicular to the surface of the object in contact with?

• 1. Applied

• 1. Gravitational

• 1. Normal

• 1. Tension

1. Two people pull on a rope in a tug-of-war. Each pull with a 300 N force. What is the net force?

• 0 N

• 1. 300 N

• 1. 600 N

• 1. 900 N

1. Planet Jupiter has a bigger mass than the Earth. If you were able to travel to planet Jupiter, what would happen to your weight?

• increases

• decreases

• 1. stays the same

• 1. varies with day and night

1. What is the net force in the figure below?

• 1. 25 N, to the left

• 25 N, to the right

• 1. 195 N, to the left

• 1. 195 N, to the right