Two Dimensional Motion

Which of the following is a physical quantity that has a magnitude but no direction?

• Vector
• Scalar
• Resultant
• Frame of Reference

Which of the following is a physical quantity that has a magnitude and direction?

• Vector
• Scalar
• Resultant
• Frame of Reference

Tags

NGSS.HS-PS2-4

Identify the following quantities as scalar or vector: the mass of an object, the number of hairs on a dog, an airplane's velocity.

• Vector, Scalar, Scalar
• Scalar, Scalar, Vector
• Vector, Scalar, Scalar
• Scalar, Vector, Vector

Identify the following quantities as scalar or vector: the speed of a cat, the time it takes to run a marathon, the free-fall acceleration.

• Vector, Scalar, Scalar
• Scalar, Scalar, Vector
• Vector, Scalar, Scalar
• Scalar, Vector, Vector

Which of the following is an example of a vector quantity?

• Velocity
• Temperature
• Volume
• Mass

A duck waddles 2.5 m east and 6.0 m north. What is the magnitude and direction of the duck’s displacement with respect to its original position?

• 3.5 m at 19⁰ north of east
• 6.3 m at 67⁰ north of east
• 6.5 m at 67⁰ north of east
• 6.5 m at 72⁰ north of east

An athlete runs 110 m across a level field at an angle of 30⁰ north of east. What are the parallel (east) and perpendicular (north) components, respectively, of this displacement?

• 64 m; east; 190 m ; north
• 190 m; east; 64 m; north
• 95 m; east; 55 m; north
• 55 m; east; 95 m; north

What is the path of a projectile?

• Wavy line
• Parabola
• Hyperbola
• Projectiles don't follow a predictable path.

Which of the following is an example of projectile motion?

• A person diving into a pool from a diving board

• A space shuttle orbiting Earth at a constant velocity

• A leaf falling from a tree

• A train moving along a flat track

Which of the following does NOT exhibit parabolic motion?

• A frog jumping from land into water
• A basketball thrown towards a hoop
• A flat piece of paper released from a window
• A baseball thrown to home plate