What are the units that force is measured in?

• amps

• Newtons

• kilograms

• metres

What is the force that causes objects to fall to Earth?

• Air resistance
• Gravity
• Water resistance
• Pressure

When two objects rub together, what force do they produce

• Gravity
• Air resistance
• Friction
• Water resistance

What force does a parachute use to slow things down before hitting the ground?

• Friction
• Air resistance
• Water resistance
• Wind

What force ultimately slows the roller coaster to a stop?

• Applied
• Normal
• Friction
• Magnetic

What is the magnitude and direction of the force in the free body diagram shown?

• 2000 N forward

• 800 N backward

• 1200 N forward

• 2800 N forward

What is the net force in this picture?

• 50 Newtons to the right
• 950 Newtons to the right
• 950 Newtons to the left
• 50 Newtons to the left

If a marble is fired into space, how would the absence of friction (no friction or drag) affect the motion of a marble?

• The marble's speed would decrease

• The marble would stop immediately

• The marble's speed would increase

• The marble would fly off at the same speed

If you apply an unbalanced force to an object at rest, what will happen to that object?

• the object will remain at rest.

• the object will move.

• The object will stay.

• None of the above.

If all forces acting on a moving object have equal magnitudes, what is the state of that object?

• the object stops moving and remains still

• the object is movies at a constant speed

• The object would be accelerating.

• None of the above.