Force and Motion

What is a PUSH or PULL of an object?

• Motion

• Force

• Friction

• Gravity

Why is it harder for the boy in Image B to get down the hill?

• Motion

• Friction

• Work

• Displacement

Which force produces a change in motion?

• unbalanced force

• balanced force

• gravitational force

• frictional force

If these boys are pulling with the same amount of force. What will happen?

• The boy in blue will win.

• They will not move at all.

• The boy in red will win.

• Both will fall down.

_______________ is how fast an object changes over time.

• speed

• velocity

• momentum

• acceleration

What happens when two forces act in the same direction?

• They cancel each other out.
• The stronger one prevails.
• Their strengths are added.
• Their sum divided by the two is the total force.

When you tell the direction and speed of an object, you give its

• motion
• velocity
• acceleration
• mass

Which of the following statements is true? 

• Balanced forces cause a change in motion. 
• Unbalanced forces cause a change in motion. 
• Forces do not effect the change in motion. 

What does this graph represent?

• Constant speed
• Acceleration
• Not moving

Which of the following objects has the least acceleration?

• a. an empty shopping cart pushed with a hard force
• b. a full shopping cart pushed with a hard force
• c. an empty shopping cart pushed with a light force
• d. a full shopping cart pushed with a light force