G8 Force and Motion

Scarlett is participating in a race and her speed is recorded as 88 m/s. What does this represent?

• Speed

• Velocity

• Acceleration

Tags

NGSS.MS-PS3-1

Charlotte is participating in a race. She is running at a speed of 88 m/s towards the north. What is this an example of?

• Speed

• Velocity

• Acceleration

A change in velocity is known as?

• Speed

• Velocity

• Acceleration

How can you change velocity if your speed stays the same?

• Change your speed

• Change your direction

• All of the above

What is a force?

• weather

• how much matter is in an object

• a push or a pull

• how fast an object is moving

Define gravity

• change in speed

• change in direction

• distance divided by time

• invisible force; that pulls objects with mass together

Tags

NGSS.HS-PS2-4

What is the formula for calculating the speed of an object?

• acceleration times mass

• distance divided by time

• mass times acceleration

• mass divided by time

Tags

NGSS.MS-PS3-1

Which of the following describes balanced forces?

• unequal forces

• equal forces

• the speed of an object

• inertia

What happens when two forces acting on an object are not equal in strength?

• The object remains stationary

• The object moves in the direction of the lesser force is pointing to

• The object moves in the direction of the greater force is pointing to

• The forces cancel each other out

Tags

NGSS.MS-PS2-2

An object that is at rest will begin to move if which of the following is true?

• The surface on which it rests is frictionless

• The mass of the object is sufficient

• Unbalanced forces act on the object

• Gravity on the object can be reduced

Tags

NGSS.MS-PS2-2